পরীক্ষা আর্কাইভ

ব্যাংক মডেল টেস্ট [সাপ্তাহিক]

পরীক্ষাব্যাংক মডেল টেস্ট [সাপ্তাহিক]তারিখতারিখ অনির্ধারিতসময়50 minutes৫৩ বৈধ · অসম্পূর্ণ
মোট প্রশ্ন৫৪
সিলেবাস
Full Model Test – 07
ঘনত্ব
উত্তর
উত্তরিতবর্তমানপুনরায় দেখুনঅসম্পূর্ণ

ব্যাংক মডেল টেস্ট [সাপ্তাহিক]

ব্যাংক মডেল টেস্ট [সাপ্তাহিক] · তারিখ অনির্ধারিত · ৫৪ প্রশ্ন

.
শব্দ নির্মাণ ও পদনির্মাণ প্রক্রিয়া গুরুত্ব পায় কোন তত্ত্বে?
  1. ধ্বনিতত্ত্ব
  2. রূপতত্ত্ব
  3. বাক্যতত্ত্ব
  4. অর্থতত্ত্ব
  5. কোনটিই নয়
ব্যাখ্যা
রূপতত্ত্বে শব্দ ও তার উপাদান নিয়ে আলোচনা করা হয়। এই আলোচনায় বিশেষ্য, সর্বনাম, বিশেষণ, ক্রিয়া, ক্রিয়াবিশেষণ ইত্যাদি স্থান পায়। বিশেষ গুরুত্ব পায় শব্দনির্মান ও পদনির্মান প্রক্রিয়া।
উৎস: নবম-দশম শ্রেণি, বাংলা ব্যাকরণ (নতুন সংস্করণ)
.
ফুসফুস থেকে নির্গত বায়ুপ্রবাহ কম থাকলে সেগুলোকে বলে -
  1. ঘোষ ধ্বনি
  2. অঘোষ ধ্বনি
  3. অল্পপ্রাণ ধ্বনি
  4. মহাপ্রাণ ধ্বনি
  5. ক ও ঘ
ব্যাখ্যা


উৎস: নবম-দশম শ্রেণি, বাংলা ব্যাকরণ (নতুন সংস্করণ)
.
'মোড়ক' শব্দের সঠিক প্রকৃতি ও প্রত্যয়-
  1. √মুড়্ + অক
  2. √মোড + অক
  3. √মুড়্ + ওক
  4. √মোড + ওক
  5. √মোড় + অক
ব্যাখ্যা

- 'মোড়ক' শব্দটি বাংলা 'অক' প্রত্যয় যোগে গঠিত শব্দ।
- যার সঠিক প্রকৃতি ও প্রত্যয় হচ্ছে √মুড়্ + অক = মোড়ক।
- এরূপঃ √ঝল্ + অক = ঝলক ইত্যাদি।
উৎসঃ বাংলা ভাষার ব্যাকরণ, নবম-দশম শ্রেণি।

.
“The idle knave get the better of the honest toiler” - এর বাংলা প্রবাদ কি?
  1. নাচতে না জানলে উঠান বাঁকা
  2. ঢিল মারলে পাটকেল খাওয়া
  3. পাপের ধন প্রায়শ্চিত্তে যায়
  4. যার ধন তার নয় নেপোয় মারে দই
  5. ফাঁপা ঢেঁকির শব্দ বড়ো
ব্যাখ্যা

নাচতে না জানলে উঠান বাঁকা (prov) - A bad workman quarrels with his tools.
যার ধন তার নয় নেপোয় মারে দই (prov) - The idle knave get the better of the honest toiler.
ঢিল মারলে পাটকেল খাওয়া (prov) - tit for tat.
পাপের ধন প্রায়শ্চিত্তে যায় (prov) - Ill-gotten goods/gains seldom prosper; Ill gotten ill spent.
ফাঁপা ঢেঁকির শব্দ বড়ো (prov) - An empty vessel sounds much.

Source: Bangla Academy 

.
নিচের কোন বাগধারাটি ভিন্নার্থক?
  1. আদায় - কাঁচকলায়
  2. গাছ পাথর
  3. দা-কুমড়া
  4. অহি-নকুল
  5. কোনোটিই নয়
ব্যাখ্যা

আদায় - কাঁচকলায়, দা-কুমড়া ও অহি-নকুল - বাগধারাগুলোর অর্থ সমার্থক। এগুলোর অর্থ - ভীষণ শত্রুতা।
অন্যদিকে,
'গাছ পাথর' বাগধারাটির অর্থ হিসেব নিকেশ।

উৎসঃ নবম-দশম শ্রেণীর বাংলা ব্যাকরণ বই ও ভাষা-শিক্ষা, ড.হায়াৎ মামুদ

.
'আমাদের দেশে হবে সেই ছেলে কবে
কথায় না বড় হয়ে কাজে বড় হবে?' কবিতাংশটি কার?
  1. জীবনানন্দ দাশ
  2. কাজী নজরুল ইসলাম
  3. কুসুমকুমারী দাশ
  4. সুকান্ত ভট্টাচার্য
  5. কামিনী রায়
ব্যাখ্যা

• কবিতা মুকুল কাব্যগ্রন্থের রচয়িতা কুসুমকুমারী দাশ।
• কুসুমকুমারী দাশের বিখ্যাত কবিতা আদর্শ ছেলে।
• তাঁর রচিত এই কবিতা পাঠ্যপুস্তকে অন্তর্ভুক্ত করায় সর্বাধিক পরিচিত।

কবিঃ কুসুমকুমারী দাশ
কবিতাঃ আদর্শ ছেলে

আমাদের দেশে সেই ছেলে কবে হবে
কথায় না বড় হয়ে কাজে বড় হবে?
মুখে হাসি বুকে বল, তেজে ভরা মন
'মানুষ হইতে হবে'- এই তার পণ।
বিপদ আসিলে কাছে হও আগুয়ান
নাই কি শরীরে তব রক্ত, মাংস, প্রাণ?
হাত পা সবারই আছে, মিছে কেন ভয়?
চেতনা রয়েছে যার, সে কি পড়ে রয়?
সে ছেলে কে চাই বল, কথায় কথায়
আসে যার চোখে জল, মাথা ঘুরে যায়?
মনে প্রাণে খাট সবে, শক্তি কর দান,
তোমরা 'মানুষ' হলে দেশের কল্যাণ।
উৎসঃ লাইভ এমসিকিউ লেকচার।

.
Choose the correctly spelt word -
  1. Interregnum
  2. Interragnum
  3. Interragnam
  4. Intirregnum
  5. Interragnem
ব্যাখ্যা

Interregnum (noun)
Meaning: A period when the normal government is suspended, especially between successive reigns or regimes.
Bengali meaning: কোনো রাষ্ট্রের স্বাভাবিক বা বৈধ শাসক নেই সেই সময়, বিশেষত এক রাজার শাসনের অবসান এবং তার উত্তরসুরির শাসন শুরু হওয়ার মধ্যবর্তী কাল; অরাজ কাল; অনায়ক কাল।

Example Sentence: They couldn't get him out of committee during the Democratic interregnum.

Source: Oxford Dictionary & Bangla Academy Dictionary.

.
Find out the correct synonym of 'Discourteous’
  1. Insolent
  2. Mannered
  3. Refined
  4. Renounce
  5. Abandon
ব্যাখ্যা

Discourteous (adjective)
Meaning: rude and not showing respect, especially towards someone older or in a higher position than you.
Bengali Meaning: রূঢ়
Synonym: Insolent, arrogant, Impertinent.
Antonym: Mannered, Respectful, Refined.

Source: Cambridge Dictionary and Thesaurus.com

.
Which is not a synonym of 'Serendipity'?
  1. Fluke
  2. Happy chance
  3. Happy accident
  4. Fortuity
  5. Introspection
ব্যাখ্যা

Serendipity (Noun):
Meaning: the fact of something interesting or pleasant happening by chance
Bengali Meaning: দৈবক্রমে শুভ ও অপ্রত্যাশিত আবিষ্কার; দৈবপ্রাপ্তিযোগ
Synonym: fluke, happy chance, happy accident, fortuity, happy coincidence
Source: Oxford Dictionary and Bangla Academy Dictionary

১০.
What is the meaning of the word ‘Ad Valorem’?
  1. According to virtue
  2. According to value
  3. According to valence
  4. According to victim
  5. According to video
ব্যাখ্যা

ad valorem
adverb:
in proportion to the estimated value of the goods or transaction concerned.

adjective:
(of the levying of tax or customs duties) proportionate to the estimated value of the goods or transaction concerned.

Latin, ‘according to the value’.

Source: Oxford Dictionary

১১.
What is the nearest meaning of the word 'memorandum'?
  1. Note
  2. Alliance
  3. Theme
  4. Custom
  5. Occurrence
ব্যাখ্যা

ব্যাখ্যা: memorandum (noun)
Meaning: a written message in business or diplomacy; a document recording the terms of a contract or other legal details.
Synonym: Communication, agreement, note, message, record
Source: Oxford Dictionary

১২.
The antonym of “Former” -
  1. Foregoing
  2. Latter
  3. Preceding
  4. Prior
  5. Antecedent
ব্যাখ্যা

Former (adjective)
Meaning: Having previously been a particular thing.
Bengali meaning: আগেকার; পূর্বের; পূর্বতন; প্রাক্তন; সাবেক; ভূতপূর্ব; বিগত।
Synonym: Previous, Foregoing, Preceding, Old, Earlier, Prior, Precursory, Antecedent
Antonym: Latter.
Source: Oxford Dictionary & Bangla Academy Dictionary.

১৩.
The antonym of “Abhorrence” -
  1. Loathing
  2. Execration
  3. Delight
  4. Detestation
  5. Hatred
ব্যাখ্যা

Abhorrence (noun)
Meaning: A feeling of revulsion; disgusted loathing.
Bengali meaning: ঘৃণা; বিতৃষ্ণা; জুগুপ্সা।
Synonym: Hatred, Loathing, Detestation, Execration.
Antonym: Love, Admiration, Delight.

Source: Oxford Dictionary & Bangla Academy Dictionary.

১৪.
Ornithologist : Bird :: Archaeologist : ?
  1. Islands
  2. Mediators
  3. Archaeology
  4. Aquatic
  5. Pool
ব্যাখ্যা
As Ornithologist is a specialist of Birds similarly Archaeologist is a specialist of Archaeology.
১৫.
Safe : Secure :: Protect : ?
  1. Lock
  2. Sure
  3. Guard
  4. Conserve
  5. Covert
ব্যাখ্যা
As safe and secure have the same meaning in the same way, protect and guard have the same meaning.
১৬.
He gave an expeditious reply. Which one is similar to the meaning of the word 'expeditious?
  1. Prompt
  2. Discourteous
  3. Coarse
  4. Fearless
  5. Beneficial
ব্যাখ্যা

Expeditious(adjective)
Meaning: Done with speed and efficiency.
Bengali meaning: দ্রুত কার্যকর, তৎপর ও দক্ষ।
Synonym: Prompt, Punctual, Immediate, Instant, Sudden.

Question Sentence: He gave an expeditious reply.
বাক্যের অর্থঃ তিনি তাৎক্ষনিক জবাব দিলেন।

Source: Oxford Dictionary & Bangla Academy Dictionary.

১৭.
At a stretch means______.
  1. Crumbling
  2. Longway
  3. Waning
  4. On the way out
  5. Without break
ব্যাখ্যা

''At a stretch'' phrase টির অর্থ হলো without break; in one continuous period ; একনাগাড়ে।
যেমনঃ
- ''I often had to work for over twenty hours at a stretch''.

১৮.
Dolphins are regarded as the friendliest creatures in the sea and stories of them helping drowning sailors have been common since Roman times. The more we learn about dolphins, the more we realize that their society is more complex than people previously imagined. They look after other dolphins when they are ill, care for pregnant mothers and protect the weakest in the community, as we do. Some scientists have suggested that dolphins have a language but it is much more probable that they communicate with each other without needing words. Could any of these mammals be more intelligent than man? Certainly the most common argument in favor of man's superiority over them that we can kill them more easily than they can kill us is the least satisfactory. On the contrary, the more we discover about these remarkable creatures, the less we appear superior when we destroy them.
30) It is clear from the passage that dolphins ______.
  1. don't want to be with us as much as we want to be with them
  2. are proven to be less intelligent than once thought
  3. have a reputation for being friendly to humans
  4. are the most powerful creatures that live in the oceans
  5. are capable of learning a language and communicating with humans
ব্যাখ্যা
Dolphins are regarded as the friendliest creatures in the sea and stories of them helping drowning sailors have been common since Roman times.
So, (C) is the answer.
১৯.
The fact that the writer of the passage thinks that we can kill dolphins more easily than they can kill us ______.
  1. means that they are better adapted to their environment than we are
  2. shows that dolphins have a very sophisticated form of communication
  3. proves that dolphins are not the most intelligent species at sea
  4. does not mean that we are superior to them
  5. proves that Dolphins have linguistic skills far beyond what we previously thought
ব্যাখ্যা
The most common argument in favor of man's superiority over them is that we can kill them more easily than they can kill us is the least satisfactory. On the contrary, the more we discover about these remarkable creatures, the less we appear superior when we destroy them.
So, (D) is the answer.
২০.
One can infer from the reading that ______.
  1. dolphins are quite abundant in some areas of the world
  2. communication is the most fascinating aspect of the dolphins
  3. dolphins have skills that no other living creatures have such as the ability to think
  4. it is not usual for dolphins to communicate with each other
  5. dolphins have some social traits that are similar to those of humans
ব্যাখ্যা
They look after other dolphins when they are ill, care for pregnant mothers and protect the weakest in the community, as we do.
So, (E) is the answer.
২১.
Kais Said is the President of which country?
  1. Tunisia
  2. Lebanon
  3. Brazil
  4. Taiwan
  5. Mexico
ব্যাখ্যা

Tunisia's president Kais Said has sacked the Prime minister Hichem Mechichi and suspended parliament in July, 2021.
Earlier, the 46-year-old former Minister explained how his government would bring the country out of the economic and social crisis. This is the third Government of Tunisia since October and the ninth since the revolution held in 2011.

২২.
As per the recent statement from the UN, 9 million people are at risk of displacement in which country?
  1. Azerbaijan
  2. Armenia
  3. Ethiopia
  4. Kenya
  5. South Sudan
ব্যাখ্যা
The United Nations has recently warned that around nine million people are at the risk of displacement in Ethiopia. As per the Office for the Coordination of Humanitarian Affairs, OCHA report, about 6 lakh people depend on food aid. Due to the declaration of emergency by the Ethiopian government, there was blockage in food and other aid.
২৩.
When is the United Nations Day celebrated across the world?
  1. October 20
  2. October 24
  3. October 27
  4. October 30
  5. October 21
ব্যাখ্যা
United Nations Day has been celebrated on 24 October every year across the world, since 1948. It marks the anniversary of the entry into force in 1945 of the UN Charter.
The year 2020 also marks the 75th anniversary of the United Nations and its founding Charter. A declaration was adopted under the theme “The future we want, the United Nations we need: reaffirming our collective commitment to multilateralism”.
২৪.
According to the ‘Population and Demographic Index 2020’, the population density (per sq km) of Bangladesh -
  1. 1095 people
  2. 1,140 people.
  3. 1205 people
  4. 1045 people
  5. 1289 people
ব্যাখ্যা
‘জনসংখ্যা ও জনতাত্ত্বিক সূচক ২০২০’ অনুযায়ী, বাংলাদেশের জনসংখ্যার ঘনত্ব (প্রতি বর্গ কিলোমিটার) - ১,১৪০ জন।

উৎস: Live MCQ সাম্প্রতিক সমাচার
২৫.
According to a report by Mercer, a US-based company, Dhaka ranks ____ in the list of most expensive cities.
  1. 45th
  2. 40th
  3. 42th
  4. 48th
  5. 46th
ব্যাখ্যা
যুক্তরাষ্ট্রভিত্তিক প্রতিষ্ঠান মার্সার (Mercer) এর প্রতিবেদন অনুযায়ী ব্যয়বহুল শহরের তালিকায় ঢাকার অবস্থান - ৪০তম।

উৎস: Live MCQ সাম্প্রতিক সমাচার
২৬.
The forest area of ​​Bangladesh is _ percent of the total land area.
  1. 14.89
  2. 15.58
  3. 13.96
  4. 12.07
  5. 12.97
ব্যাখ্যা
বর্তমানে দেশের বনভূমির আয়তন - প্রায় ২৩ লাখ হেক্টর, যা মোট ভূখণ্ডের ১৫ দশমিক ৫৮ শতাংশ।

উৎস: Live MCQ সাম্প্রতিক সমাচার
২৭.
The retail price of a pen is 40 taka. Asif got a discount of 25% over the retail price and he eventually saved taka 240 on his total purchase of the pens. How many pens did he buy?
  1. 35 pens
  2. 24 pens
  3. 30 pens
  4. 20 pens
  5. 18 pens
ব্যাখ্যা

According to the question,
Retail price 40 Tk. (per pen).
20% discount = 40 × (25/100)
= 10 Tk.
অর্থ্যাৎ,
প্রতি pen এ save হয় = 10 Tk.
Total savings = 240 Tk.
∴ Number of pen = 240/10
= 24 pens.

২৮.
A batsman hits boundaries 6 times out of 30 balls. Find the probability that he did not hit the boundaries.
  1. 1/5
  2. 2/5
  3. 3/5
  4. 4/5
  5. 2/3
ব্যাখ্যা

No. of boundaries = 6
No. of balls = 30
No. of balls without boundaries = 30 – 6 =24
Probability of no boundary = 24/30 = 4/5

২৯.
A sum of money at simple interest amounts to Tk.815 in 3years and to Tk.854 in 4 years. What is the sum?
  1. Tk 720
  2. Tk 650
  3. Tk 698
  4. Tk 875
  5. Tk 659
ব্যাখ্যা

S.I. for 1 year = 854 - 815
= 39
S.I. for 3 years = 39 × 3
= 117
∴ Required Sum = 815 - 117
= Tk. 698.

৩০.
A train travels 360 km at a uniform speed. If the speed had been 5 km/h more, it would have taken 1 hour less for the same journey. Find the speed of the train.
  1. 30 km/hr
  2. 40 km/hr
  3. 50 km/hr
  4. 60 km/hr
  5. 67 km/hr
ব্যাখ্যা

Let x km/hr be the speed of the train.

Time required to cover 360 km = 360/x hr.

As per the question given,

⇒ (x + 5)((360/x)- 1) = 360
⇒ (x + 5)(360 – x) = 360x
⇒ 360x – x2 + 1800 - 5x = 360x
⇒ x2 + 5x – 1800 = 0
⇒ x(x + 45) -40(x + 45) = 0
⇒ (x + 45)(x – 40) = 0
⇒ x = 40, -45

Negative value is not considered for speed, hence the answer is 40km/hr.

৩১.
If a sum of money trebles itself in 40 years, what is the rate of interest?
  1. 7%
  2. 4%
  3. 9%
  4. 3%
  5. 5%
ব্যাখ্যা

Let the sum of money be x.
x becomes 3x in 40 years.
Simple interest = 3x - x
= 2x
R = (100 × 2x)/(x × 40)
= 5%

৩২.
The distance between two parallel tangents of a circle is 18 cm, then the radius of the circle is
  1. 8 cm
  2. 10 cm
  3. 9 cm
  4. 18 cm
  5. 12 cm
ব্যাখ্যা

Distance between two parallel tangents = 18 cm
That means, diameter = 18 cm
Therefore, radius of the circle = 18/2 = 9 cm

৩৩.
√6 x √27 is equal to:
  1. 9√2
  2. 3√3
  3. 2√2
  4. 9√3
  5. 5√3
ব্যাখ্যা

√6 x √27
= √(6 x 27)
= √(2 x 3 x 3 x 3 x 3)
= (3 x 3)√2
= 9√2

৩৪.
When the shadow of a pole h metres high is √3h metres long, the angle of elevation of the Sun is-
  1. 20°
  2. 30°
  3. 60°
  4. 45°
  5. 15°
ব্যাখ্যা

Let AB be the pole and BC be its shadow.
Consider θ is the angle of elevation of the Sun.



In right triangle ABC,

tan θ = AB/BC = h/√3h = 1/√3
tan θ = tan 30°
θ = 30°

৩৫.
6 pipes are required to fill a tank in 1 hour 20 minutes. If we use 5 such types of pipes, how much time will it take to fill the tank?
  1. 120 minutes
  2. 96 minutes
  3. 80 minutes
  4. 85 minutes
  5. 75 minutes
ব্যাখ্যা

For 6 pipes, it takes 1 hour 20 minutes
1 hour 20 minutes = 60 + 20 = 80 minutes

For 5 pipes, let the time taken be x.

This is inverse proportion case:
80 × 6 = x × 5
x = 480/5
= 96

৩৬.
P, Q and R can do work in 20 , 30 and 60 days respectively. How many days does it take to complete the work if P does the work and he is assisted by Q and R on every third day?
  1. 15 days
  2. 9 days
  3. 10 days
  4. 14 days
  5. 18 days
ব্যাখ্যা

Amount of work P can do in 1 day = 1/ 20
Amount of work Q can do in 1 day = 1/ 30
Amount of work R can do in 1 day = 1 /60
P is working alone and every third day Q and R is helping him.

Work completed in every three days = 3 × 1/20 + 1/30 + 1/60 = 1/5
So, work completed in 15 days = 5 × 1/5 = 1
That is, the work will be done in 15 days

৩৭.
The selling price of 15 items equals the cost of 20 items. What is the percentage of profit earned by the seller?
  1. 23.54%
  2. 30.87%
  3. 23.33%
  4. 33.3%
  5. 56.4%
ব্যাখ্যা

Let cost price per item be 1.
cp of 15 items = 15
sp of 15 items = cost price of 20 items= 20

So, profit = 20 - 15 = 5.
∴ required profit % = (5/15) × 100 = 33.3%

৩৮.
A train travelled at an average speed of 100 km/hr, stopping for 3 minutes after every 75 km. How long did it take to reach its destination 600 km from the starting point?
  1. 6 hrs 21 min
  2. 7 hrs 14 min
  3. 7 hrs 22 min
  4. 6 hrs 21 min
  5. 5 hrs 12 min
অনির্ধারিত
ব্যাখ্যা

Distance = 600 km
Speed = 100 km/hr
Time = 600/100
= 6hr
Number of stops in 600 km = (600/75) − 1 = 7
Time of stopping after every 75 km = 3 min
Total time of stopping = 7 × 3 = 21min
Total time to cover 600 km is 6 hr 21 min.


সঠিক উত্তর - ক) 6 hrs 21 min
কিন্তু অপশনে দুইবার 6 hrs 21 min থাকায় উত্তর বাতিল করা হয়েছে।

৩৯.
In a family the average age of the father and mother is 38 years whereas the average age of father, mother and their only daughter is 28 years. Then the age of the daughter is -
  1. 7 years
  2. 6 years
  3. 5 years
  4. 4 years
  5. 8 years
ব্যাখ্যা

The age of the daughter = (3 × 28) - (2 × 38)
= 84 - 76
= 8 years

৪০.
A box contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the box, if at least one black ball is to be included in the draw?
  1. 32
  2. 48
  3. 64
  4. 96
  5. 69
ব্যাখ্যা

We may have (1 black and 2 non-black) or (2 black and 1 non-black) or (3 black).
required number of ways = (3C1 x 6C2) + (3C2 x 6C1) + (3C3)
= 3 x (6 x 5)/(1 x 2) + (3 x 2)/(1 x 2) x 6 + 1
= (45 + 18 + 1)
= 64.

৪১.
The speed of a boat in still water is 22 km/hr and the rate of current is 4 km/hr. The distance travelled downstream in 24 minutes is:
  1. 12.5 km
  2. 10.4 km
  3. 8.7 km
  4. 9,7 km
  5. 6.9 km
ব্যাখ্যা

Speed downstream = (22 + 4) = 26 kmph
Time = 24 minutes
= 24/60 hour = 2/5 hour
Distance travelled = Time × speed
= (2/5) × 26 = 10.4 km

৪২.
The milk and water in a mixture are in the ratio 7 : 5. When 15 liters of water are added to it, the ratio of milk and water in the new mixture becomes 7 : 8. The total quantity of water in the new mixture is:
  1. 35 litres
  2. 40 litres
  3. 60 litres
  4. 96 litres
  5. 67 litres
ব্যাখ্যা

Milk : Water
  7   :    5
  7   :    8
---------------
         3 unit

∴ Remember water is added and not milk, so make milk equal but here milk is already equal
3 units = 15 litres
1 units = 5 litres
8 units = 40 litres
Total quantity of water in the new mixture = 40 litres

৪৩.
An article when sold at a gain of 5% yields Tk. 15 more than when sold at a loss of 5%. Its cost price would be -
  1. Tk 130
  2. Tk 150
  3. Tk 120
  4. Tk 110
  5. Tk 115
ব্যাখ্যা

At 5% profit, selling price = 100 + 5 = 105 tk
At 5% loss, selling price = 100 - 5 = 95 tk
Difference between selling price = 105 - 95 = 10 tk
When the difference 10, buying price is 100 tk
∴ When the difference is 15, buying price is (100 × 15)/10 tk
= 150 tk

৪৪.
Rahim and Karim donated Tk. 100 each in charity. Karim gives each Tk. 1 more than Rahim and Rahim distributes money to 5 more people than Karim. How many people are there in this charity?
  1. 40
  2. 38
  3. 45
  4. 42
  5. Tk 49
ব্যাখ্যা

Let, Rahim donates x taka each.
And, Karim donates = x + 1 taka each
ATQ,
100/x – 100/(x + 1) = 5
Or, x2 + x - 20 = 0
Or, x2 + 5x - 4x - 20 = 0
Or, (x - 4)(x + 5) = 0
So, x = 4; x ≠ -5
∴ Rahim donates to = 100/4 = 25 people
Kaim donates to = 100/5 = 20 people
Therefore, number of people in the charity = 20 + 25 = 45

৪৫.
File format that are supported in PowerPoint -
  1. .ptpx
  2. .pptx
  3. .txt
  4. .doc
  5. .docx
ব্যাখ্যা

PowerPoint Presentation - .pptx
PowerPoint Macro-Enabled Presentation - .pptm
PowerPoint 97-2003 Presentation - .ppt

৪৬.
Which is the cloud storage service of Microsoft?
  1. Dropbox
  2. pCloud
  3. One Drive
  4. Live Drive
  5. IDrive
ব্যাখ্যা
OneDrive is Microsoft's cloud-based online storage solution.
Source: businessinsider.com
৪৭.
Which of the following is spreadsheet software?
  1. MS Word
  2. PowerPoint
  3. MS Excel
  4. FoxPro
  5. All of these
ব্যাখ্যা

- MS Excel is a spreadsheet software.
- MS Word is word processing software.
- PowerPoint is a presentation software.
- FoxPro is a database management system.

৪৮.
“PIN” stands for which of the following?
  1. Permanent Identification Number
  2. Portable Identification Number
  3. Permanent Identity Number
  4. Protected Identification Number
  5. Personal Identification Number
ব্যাখ্যা
A personal identification number (PIN) is a numerical code used in many electronic financial transactions. Personal identification numbers are usually issued in association with payment cards and may be required to complete a transaction.
৪৯.
The ____ program compresses large files into a smaller file.
  1. WinZip
  2. WinShrink
  3. WinStyle
  4. Windows
  5. None of above
ব্যাখ্যা
WinZip is a Windows program that lets you archive and compress files so that you can store or distribute them more efficiently.
৫০.
____ controls all the main slide control tasks for your presentation.
  1. Task Pane
  2. Task Bar
  3. Control Panel
  4. Insert Menu
  5. None of above
ব্যাখ্যা
The Task Pane is a rectangular window that appears docked on the right side of your PowerPoint window. It acts as an open menu allowing you to select from a range of commands and functions. It displays a list of links and commands allowing you to perform different tasks depending on what you are doing at the time. The task pane is designed to help you complete tasks quickly and will change automatically according to the task in hand.
৫১.
The 0 and 1 in the binary numbering system are called Binary Digits or -
  1. Bytes
  2. Kilobytes
  3. Decimal bytes
  4. Bits
  5. None of these
ব্যাখ্যা
In mathematics and digital electronics, a binary number is a number expressed in the base-2 numeral system or binary numeral system, which uses only two symbols: typically 0 (zero) and 1 (one). The base-2 numeral system is a positional notation with a radix of 2. Each digit is referred to as a bit.
৫২.
What would we use to measure the current?
  1. Actinometer
  2. Ammeter
  3. Anemometer
  4. Altimeter
  5. Algesimeter
ব্যাখ্যা
Ammeter is used to measure the current.
৫৩.
Light from the Sun reaches us in nearly
  1. 2 min.
  2. 6 min.
  3. 4 min.
  4. 5 min.
  5. 8 min
ব্যাখ্যা
The light from the sun takes about 8 minutes to reach the Earth after it has been emitted from the sun's surface.
৫৪.
Natural radioactivity was discovered by
  1. Marie Curie
  2. Ernest Rutherfor
  3. Henri Becquerel
  4. Enrico Fermi
  5. Albert Einstein
ব্যাখ্যা
Natural radioactivity was discovered by Henri Becquerel.