ব্যাংক মডেল টেস্ট [সাপ্তাহিক]

পূর্বপদ ও পরপদ উভয়ই বিশেষ্য হলে বা কখনো কখনো ক্রিয়াবিশেষ্য হলে ব্যাধিকরণ বহুব্রীহি সমাস হয়। 
যেমন :
- গোঁফে খেজুর যার = গোঁফখেজুরে।
- কথা সর্বস্ব যার = কথাসর্বস্ব
- আশীতে বিষ যার = আশীবিষ

উৎস: বাংলা ভাষার ব্যাকরণ ও নির্মিতি, নবম-দশম শ্রেণী (২০২১ সংস্করণ)

ম্যাও ধরা - দায়িত্ব নেওয়া৷
হাতে-পায়ে ধরা - অনুরোধ করা৷
গলা ধরা - কণ্ঠ রুদ্ধ হওয়া৷
গোঁ ধরা - একগুয়েমি করা।
উৎসঃ বাংলা ভাষার ব্যাকরণ-নবম দশম শ্রেণি

• একাধিক বর্ণ যুক্ত হয়ে যুক্তবর্ণ তৈরি হয়। যুক্ত হওয়া বর্ণগুলোকে দেখে কখনো সহজে চেনা যায়, কখনো সহজে চেনা যায় না। যেমনঃ
- ক্ + ত = ক্ত,
- ক্ + ম = ক্ম,
- ক্ + র = ক্র,
- ক্ + হ = ক্হ,
- ক্ + ষ = ক্ষ,
- ক্ + স = ক্স,
- ঙ্ + ক = ঙ্ক ইত্যাদি।
উৎসঃ বাংলা ভাষার ব্যাকরণ ও নির্মিতি, নবম-দশম শ্রেণি।

আলজিহবা এর ইংরেজি পারিভাষিক শব্দ Uvula।
Groin - কুচ্‌কি,
Spittle - থুথু,
Skull - মাথার খুলি।
উৎসঃ বাংলা ভাষা ও সাহিত্য জিজ্ঞাসা-ড. সৌমিত্র শেখর

- ময়ূরের সমার্থক শব্দ কলাপী, শিখী, শিখণ্ডী, বর্হী।
- শিখণ্ডিক অর্থ মোরগ।
- কবুতরের সমার্থক শব্দ কপোত, নোটন, পায়রা, পারাবত।
- কোকিলের সমার্থক শব্দ অন্যপুষ্ট, কলকণ্ঠ, পিক।
- খরগোশ এর সমার্থক শব্দ শশক।
উৎসঃ বাংলা একাডেমির প্রমিত বাংলা অভিধান।

• Known by অর্থ পরিচিত হয়।
• এখানে বাক্যটির অর্থ দাঁড়ায় - একজন মানুষকে তার সঙ্গী দ্বারা চেনা যায়।

Pride means ‘a company of lions’ ( সিংহের দল) similarly gaggle means ‘a flock of geese’.
বাকি তিনটি pair of words এ এ ধরণের সম্পর্ক বিদ্যমান নেই।

- During is used to talk about something happening within a time period. On is used while referring to days and dates.
- In is used while referring to months, centuries, years and long periods. Around means nearly at.
- So, the most suitable preposition for the first blank is 'around'.
- The second blank should use 'off' as 'dropped off' (an act of taking people, goods, mail, etc. to a place, or the place where you take them) is the most suitable phrase according to the sentence.
- Correct sentence: It was around midnight when three cars dropped off the passengers and disappeared.

Conjunction:
Conjunction is a part of speech that is used to join words, phrases or sentence. Let's explore the options:
When: As a conjunction, it means considering the fact that.
Example: How can you say you don't like something when you've never even tried it!
Unless: As a conjunction, it means except if.
Example: You can't get a job unless you have experience
To: It is a preposition and is used with an infinitive to express use or purpose.
Example: I'm going there to see my sister.
While: As a conjunction, it means during the time that, or at the same time as.
Example: I read it while you were drying your hair.
Thus, from the above, we can conclude that 'while' will be used in the sentence as the sentence is expressing the actions are taking place at the same time. Therefore, the correct answer is: 'The boys sang while the girls danced.'

- The most appropriate word to fill in the given blank is 'caught'.
- The given sentence is talking about a past event.
- In these kinds of cases 'second form of the verb' is used.
- The correct form depends on context.
- Here, 'Caught' is the second form of 'Catch'. It means 'grasp or try to grasp.
- Example: His hands caught at her arms as she tried to turn away.
- Therefore, as per the points mentioned above, we find that the correct answer is Option 3.

- The word 'everyone' means every person.
- Let us explore the given options: 'Her' denotes the female person that was mentioned earlier.
- 'His' means of or belonging to the male person that was mentioned earlier.
- ''One's'' is used to refer to any person, as representing people in general.
- 'Own' is used with a possessive to emphasize that someone or something belongs or relates to the person or thing mentioned.
- Conclusion: Every person is allowed to express his or her (one's) opinion.

So, the correct answer is: গ) one's

Question word 'Allegiance' means 'loyalty and support for a ruler, country, group, or belief'.
Ex: Soldiers have to swear allegiance to the Crown/the King.
The marked option 'Falsity' means 'the act or fact of violating the trust or confidence of another'.
Ex: Despite being offered a fortune to spill the president's secrets, the trusted aide declared that he'd sooner die than be guilty of such falsity.
From the above explanation, it's clear that 'Falsity' is the opposite in meaning to 'Allegiance'.
Therefore, the correct answer is option 4.

- embraced: hold (someone) closely in one's arms, especially as a sign of affection.
- He leaned over to embrace the child.
- terminated: to (cause something to) end or stop.
- They terminated my contract in October.
- snubbed: to insult someone by not giving them any attention or treating them as if they are not important.
- Lawrence attempted to draw me into the conversation, but I snubbed him and went to another part of the room.
- obtained: to get something, especially by asking for it, buying it, working for it, or producing it from something else.
- First editions of these books are now almost impossible to obtain.

Thus, from the above-given explanation, we can say that 'embraced' will be used in the blank. Therefore, the correct answer is option 1.

- assail: to attack someone or something violently.
- They came in four pairs from the only four directions from which the farm could be assailed.
- curtail to reduce or limit something Budget cuts have drastically curtailed training programs.
- frail:  easily damaged or broken.
- It seemed impossible that these frail boats could survive in such a storm.
- sail: to travel on or across an area of water in a boat or ship.
- She always wanted to sail around the world.

Thus, from the above-given explanation, we can say that 'assail' will be used in the blank.
Therefore, the correct answer is option 1.

- inspirit: encourage and enliven (someone).
- The photograph, published in a newspaper, was meant to inspirit the troops.
- lunatic: someone who behaves in a crazy or very stupid way.
- This hotel is run by a lunatic!
- rally: a large public meeting, especially one that is held outdoors to support a political idea, protest etc.
- About 1,000 people attended the rally in Hyde Park.
- hail:  call out to (someone) to attract attention.
- She leaned out of the window and hailed a passerby.

Thus, from the above-given explanation, we can say that 'lunatic' will be used in the blank. Therefore, the correct answer is option 2.

Schedule: a plan for carrying out a process or procedure, giving lists of intended events and times.
Timetable: a chart showing the departure and arrival times of trains, buses, or aircraft.a chart showing the departure and arrival times of trains, buses, or aircraft.
Agenda: a list of items to be discussed at a formal meeting.
Plan: a detailed proposal for doing or achieving something.

Let the cost price of goods be 100 taka.
At 25% profit,
if cost price of goods is 100 taka, selling price of goods is (100 + 25) taka or 125 taka.

At a discount 20%,
80% of goods' price = 125 taka.
100% of goods' price shall be (125×100/80) taka or 156.25 taka.
profit percentage would be (156.25 - 100) taka or 56.25 taka.

Let the length  of the other train be x meter. 
We have,
t = ( s₁ + s₂ ) / ( v₁ + v₂ )
or, 18 = 18 ( 207 + x ) / { 5 ( 62 + 38 ) }
or, 207 + x = ( 100 × 5 × 18 ) 18
or, x = 500 - 207 = 293

Let X be the number of employees.
Now, 40% of X = 0.4X
Hence, the number of workers is 2X/5

All the remaining employees are executives,
so the number of executives = X - 2X/5 = 3X/5
The total annual income of all workers together = 2X/5 × 390 = 156X

The total income of all the executives together = 3X/5 × 420 = 252X

Hence, the total income of the employees = 156X + 252X = 408X
The average income of all the employees together = 408

Each one's common factor is HCF.
Here, HCF = 12,
Hence, the numbers are 12, 24 and 36.

Suppose Ramesh invested x taka.
Manoj : Ramesh = (120000 × 6) : (x × 12).
or, 720000 /12x = 6000 / 3000
∴ x = 720000 / 24 = 30000

Given: Time is taken by train 1 to move from A to B = 6 hours
Time is taken by train 2 to move from B to A = 8 hours
Let be assume the total distance from A to B is D
The speed of train A = D/6 
The speed of train B = D/8 
Distance travel by A till 10 am = 2 × (D/6) = D/3
The remaining distance = D - D/3 = 2D/3

Time taken by both train to meet
= (2D/3)/(D/6 + D/8)
= {(2D/3)/(4D + 3D)/(24)}
= (2D /3) × (24/7D)
= 16/7 hours
= (2 + 2/7) hours
= 2 hours and (2 × 60) / 7 minutes
= 2 hours and 120 / 7 minutes
= 2 hours and 120 / 7 minutes
= 2 hours and 17 minutes 1/7 minutes
= 2 hours and 17 minutes 9 seconds (approx)
∴ The required result will be (10 : 00 + 2 : 17) pm = 12 : 17 pm

Let the son's age be x years ,
Therefore,  Mr. Sanyal's age = 3x years
According to the question,
(3x + 6)/(x + 6) = 5/2 or, x = 18
∴ Present age of Mr. Sanyal = 3x years = (3 × 18) years = 54 years

The watch shows 3 minutes and 05 seconds when actual watch shows just 3 minutes.
3 minutes = 05 seconds
60 minutes = 05×60/3 seconds
                   = 100 seconds
Therefore, 9 × 60 minutes or 9 hours  = (100× 9)  seconds
                                                             = 900/60 minutes
                                                             = 15 minutes
Its shows the time to be 4:15 PM by the faulty watch
7 am to 4 pm is a time gap of 9 hours.
The watch would have gained 15 minutes in total
Thus the true time by a normal running watch would be 4:00PM.

A regular tetrahedron is made up of four congruent equilateral triangles.
It can be thought as a pyramid with a base that is an equilateral triangle.
The volume of a pyramid is 1/3 × A × h, where A is the area of the base
and h is the height of the pyramid perpendicular to the base.

The area of an equilateral triangle is √3/4 × 8², where 8 is the length of a side or edge.

The height of a regular tetrahedron is √(2/3) × 8

Therefore, the volume of the regular tetrahedron is:
V= 1/3 × √3/4 × 8² × √(2/3) × 8
= 128√2/3 cm³
= 60.34 cm^{3
-----------------------------------------------------------------------------------------------------
Shortly,}
V= a³/(6√2) unit³ 
   = 8³/(6√2) cm³
   = 60.34 cm³
------------------------------------------------------------------------------------
Important note:

With a side length of 6, Pythagoras gives a slant height AM of 3sqrt(3).
The apex A will be above the centroid of the base BCD which divided MD in a 1 : 2 ratio, so MG = sqrt(3).
Now a second application of Pythagoras gives a height GA of 2sqrt(6).
The center of the tetrahedron, which is the center of the sphere, divides the height in a 1 : 3 ratio so r = GS = sqrt(6)/2.

L.C.M. of (4, 6, 8, 9)
= 2 × 2 × 3 × 2 × 3
= 72
∴ Required result should be = 72
If we divide 72 by 19, we get 15 as a remainder.
Therefore, the required least number is 72. 

[ log_(x^a)(y^b) = b/a log_xy ]

In each number except 751, the difference of third and first digit is the middle one.

Let the 1st part be p
Therefore, the 2nd part = 1750 - p

∴ p × (8/100) × 1 = (1750−p)×(6/100)×1
or, p = 750

The interest on each part ( in taka) is 750 × 8/100 = 60 taka

Initial Cost = 75 taka
After 20% increase in the cost, it becomes (75 + 20% of 75) or 90 taka
Now, Cost is decreased by 20%, So cost will become (90 - 20% of 90) or 72 taka
So, present cost is 72 taka

Let speed be y km/hour
1680/y - 1680/(y + 14) = 6 or, y = 56 but y ≠ - 76
The usual time of the minibus shall be 1680/56 = 30 hours

Let AB = AC = 2p and AQ = CQ = P
AP × AB = AQ²
AP × 2p = p²
AP = p/2
AP/AB = (p/2)/(2p) = 1/4
AP : AB = 1 : 4
---------------------------------------------------------------------------------------------
Alternative way:

Given that, AB=AC and AQ=QC
In △ABQ and △AQP,
∠BAQ=∠QAP [ For Common angle]
∠ABQ=∠AQP
[Angle between a chord and tangent is equal to angle subtended by that chord in the alternate segment]

[N. B. - The alternate segment theorem (also known as the tangent-chord theorem) states that in any circle, the angle between a chord and a tangent through one of the end points of the chord is equal to the angle in the alternate segment.]

△ABQ∼△AQP
AB/AQ = AQ/AP
or, AQ² = AB × AP
or, (AB/2)² = AB × AP
or, AB²/4 = AB × AP
or, AB/4 = AP
or, AB/AP = 4
∴ AB : AP = 4 : 1

Speed downstream = (15 + 10) km/hr or 25 km/hr
Time taken to travel 75 km downstream = 75/25 hours or 3 hours

- The correct answer is Programmable Universal Machine for Assembly.
Programmable Universal Machine for Assembly and development of robotics:
- Advanced computer-controlled electric arms guided by sensors were developed in the late 1960s and 1970s
- at the Massachusetts Institute of Technology (MIT) and at Stanford University,
- where they were used with cameras in robotic hand-eye research.
- Stanford’s Victor Scheinman, working with Unimation for GM, designed the first such arm used in industry.
- Called PUMA (Programmable Universal Machine for Assembly), they have been used since 1978
- to assemble automobile subcomponents such as dash panels and lights.
Hence statement 3 is correct.
PUMA was widely imitated, and its descendants, large and small, are still used for light assembly in electronics and other industries.
Since the 1990s small electric arms have become important in molecular biology laboratories, precisely handling test-tube arrays and pipetting intricate sequences of reagents.

- Clock speed: Clock speed is a significant way to measure the performance of the Processor.
​- CPU processes many instructions (low-level calculations like arithmetic) from different programs every second.
- The clock speed measures the number of cycles your CPU executes per second, measured in GHz (gigahertz).
- A “cycle” is technically a pulse synchronized by an internal oscillator, but for our purposes, they’re a basic unit that helps understand a CPU’s speed.
- During each cycle, billions of transistors within the processor open and close.
- A CPU with a clock speed of 3.2 GHz executes 3.2 billion cycles per second.

- An operating system is a program that acts as an interface between the user and the computer hardware and controls the execution of all kinds of programs.
- An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. - Following are some of the important functions of an operating System:
Memory Management, Processor Management, Device Management, File Management, Security, Control over system performance, Job accounting, Error detecting aids, Coordination between other software and users.
- Some popular Operating Systems include Linux Operating System, Windows Operating System, VMS, OS/400, AIX, z/OS, etc.
- The dominant desktop operating system is Microsoft Windows with a market share of around 76.45%. macOS by Apple Inc. is in second place (17.72%), and the varieties of Linux are collectively in third place (1.73%).
- In the mobile sector (including smartphones and tablets), Android's share is up to 72% in the year 2020. Thus, option 3 is the correct answer.

- URL is the name for a web page address.
- URL stands for Uniform Resource Locator.
- Every web page that is displayed on the Internet has a specific address associated with it.
- This address is known as the URL.
- It tells us the location of the web page being displayed and other related information.

According to NIST(National Institute Of Standard and Testing) stability is not the characteristic of cloud computing.

The three characteristics of cloud computing are:
Resource scalability,
On-demand,
Pay as you go.

Source: তথ্য ও যোগাযোগ প্রযুক্তি(একাদশ - দ্বাদশ শ্রেণী)
প্রকৌশলী মজিবুর রহমান।

The Intel 4004 is a 4-bit central processing unit (CPU) released by Intel Corporation in 1971. It was the first commercially available microprocessor by Intel. The 4004 was the first in a long line of Intel CPUs.

The chip design started in April 1970, when Federico Faggin joined Intel, and it was completed under his leadership in January 1971.

The correct answer is 1990.
The Human Development Report (HDR) is an annual Human Development Index report
published by the Human Development Report Office of the United Nations Development Programme (UNDP).
The first HDR was launched in 1990 by the Pakistani economist Mahbub ul Haq and Indian Nobel laureate Amartya Sen.
Human Development Report published by UNDP compares countries based on the educational levels of the people, their health status, and per capita income.
Health i.e. Life expectancy - It denotes the number of years a person is to be alive. It is an estimate of the average age of members of a group.
Education i.e. Gross enrolment ratio - It is This ratio for three levels means enrolment ratio for primary school, secondary school, and higher education beyond secondary school.
National Income - All goods and services produced in a year by a country are valued. The higher the national income, the better the growth of any economy or country. From the national income figures, it can be known how fast the growth of a country is increasing.

Push and Pull factors work together when people are migrating. People migrate for several reasons.
These reasons may fall under these four areas: Environmental, Economic, Cultural, and Socio-political.
The reasons responsible for migration are termed Push or Pull factors.
Push factors are those that force the individual to move voluntarily, and in many cases, they are forced because, the individual risk something if they stay. Push factors may include conflict, drought, famine, or extreme religious activity.
Low economic activity and lack of job opportunities are also big push factors for migration.
Other push factors include race and discriminating cultures, political intolerance, and persecution of people who question the status quo.
Pull factors are those factors in the destination country that attract the individual or group to leave their home.
Better economic opportunities, more jobs, and the promise of a better life often pull people into new locations.

- Per capita income or average income measures the average income earned per person in the given area in a specified year.
- It is calculated by dividing the area's total income by its total population.
- In World Development Reports, brought out by the World Bank, this criterion is used in classifying countries.
- Countries with a per capita income of US$ 12,056 per annum and above in 2017, are called rich countries.
- Countries with a per capita income of US$ 955 or less are called low-income countries. 
- Annual income is the total value of income earned during a fiscal year.
- Fiscal Year (FY): A fiscal year (FY) is a 12-month or 52-week period of time used by governments.
- GDP stands for "Gross Domestic Product". It is the total monetary or market value of all the finished goods and services produced within a country’s borders in a specific time period.

- The Atrai River flows through the Dinajpur district of Bangladesh.
- Its ancient name was Atrei River. It flows through the eastern part of Dinajpur town and enters
- West Dinajpur of West Bengal after passing through
- Bhusir Bandar and Samjia Ghat.
Source: Banglapedia.

M-Cash was launched by Islami Bank Bangladesh Ltd.
My Cash was launched by Mercantile Bank Ltd.
Upay was launched by United Commercial Bank Ltd.
Bkash was launched by BRAC Bank Ltd

Disposable income is used by economists to measure and estimate various other related indicators like discretionary income, personal savings rates, marginal propensity to consume (MPC), and marginal propensity to save (MPS).
When disposable income increases, households have more money to either save or spend, which naturally leads to a growth in consumption.
In the case of recession, revenue falls while expenditures rise thereby creating a deficit.
In order to balance the budget, the government must raise more revenue (by increasing taxes) and cut expenditures.
Both of these actions will lower disposable income.
As a result, consumption and aggregate demand will fall.

- The seven sister states of India from north to south are Arunachal Pradesh, Assam, Meghalaya, Nagaland, Manipur, Tripura, and Mizoram.
- Sikkim belongs to the group of northeastern states but doesn't belong to Seven Sisters State.
- Sikkim also called the only brother of seven sisters states.
- It is 7% of the total area of India. 
- The term "Land of seven sisters" was coined by Jyoti Prasad Saika in 1972.

- White blood cells are an important part of the immune system
- which helps in fighting infections by attacking bacteria, viruses, and germs that invade the body.
- White blood cells are also known as leukocytes.
- They help in protecting the body against both infectious diseases and foreign invaders.
- WBC is produced in the bone marrow.
- Normal levels of white blood cells in the blood are 4,500-10,000 white blood cells per mm3.
- White blood cells are formed continually; some only live for hours or days, but some live for years.
- Leukocytes are further classified into two subcategories: Granulocytes consist of neutrophils, eosinophils, and basophils.
- Agranulocytes consist of lymphocytes and monocytes
- ​The maximum part of White Blood Cells is made up of Neutrophils. ​

Estrogen: Estrogen is the most well-known female sex hormone.
- According to the National Women’s Health Resources Center, this sex hormone is produced in the adrenal glands, ovaries, and fatty tissue.
- Its foremost function is to assist breast growth in puberty, help in the growth of uterus lining during the menstrual cycle, and maintain the bone's strength by collaborating with vitamin D, calcium, and minerals.
- A little amount of estrogen is present in a man’s body also.
- Female Hormones Several hormones in females are naturally produced and secreted by the glands of the endocrine system.
- The female hormones, estrogen, and progesterone are secreted for influence on a woman’s reproductive health and are termed as female hormones.
- Apart from these, testosterone hormones normally considered as the male hormone is also produced by the ovaries (female reproductive organ) in very small quantities.

- A microwave oven uses microwaves to heat food.
- In the case of microwave ovens, the commonly used radio wave frequency is roughly 2,500 megahertz (2.5 gigahertz).
- Radio waves in this frequency range are absorbed by water, fats, and sugars.
- When they are absorbed they are converted directly into atomic motion or vibration.
- Therefore heavy motion or vibration is converted into heat.

Uranus is blue-green in color, as a result of the methane in its mostly hydrogen-helium atmosphere.
The Planet is often dubbed an ice giant since at least 80% of its mass is a fluid mix of water, methane and ammonia ice.
Source: Space.com