ব্যাংক জব সল্যুশন - রিভিশন

জাতিবাচক বিশেষ্য:
যে পদ দ্বারা কোনাে একজাতীয় প্রাণী বা পদার্থের সাধারণ নাম বােঝায়, তাকে জাতিবাচক বিশেষ্য বলে।
যেমন - মানুষ, গরু, পাখি, গাছ, পর্বত, নদী, ইংরেজ।

দ্রব্যবাচক বিশেষ্য:
যে পদে কোনাে উপাদানবাচক পদার্থের নাম বােঝায়, তাকে বহ্বাচক বা দ্রব্যবাচক বিশেষ্য বলে। এই জাতীয় বস্ত্র সংখ্যা ও পরিমাণ নির্ণয় করা যায়।
যেমন - বই, খাতা, কলম, থালা, বাটি, মাটি, চাল, চিনি, লবণ, পানি।

সমষ্টিবাচক বিশেষ্য:
যে পদে বেশকিছু সংখ্যক ব্যক্তি বা প্রাণীর সমষ্টি বােঝায়, তা-ই সমষ্টিবাচক বিশেষ্য।
যথা— সভা, জনতা, সমিতি, পঞ্চায়েত, মাহফিল, ঝক, বহর, দল।

ভাববাচক বিশেষ্য:
যে বিশেষ্য পদে কোনাে ক্রিয়ার ভাব বা কাজের ভাব প্রকাশিত হয়, তাকে ভাববাচক বিশেষ্য বলে।
যথা- গমন (যাওযার ভাব বা কাজ), দর্শন (দেখার কাজ), ভােজন (খাওয়ার কাজ), শয়ন (শশায়ার কাজ), দেখা, শােনা।

গুণবাচক বিশেষ্য:
যে বিশেষ্য দ্বারা কোনাে বস্তুর দোষ বা গুণের নাম বােঝায়, তা-ই গুণবাচক বিশেষ্য।
যথা—মধুর মিষ্টত্বের গুণ মধুরতা, তরল দ্রব্যের গুণ–তারল্য, তিক্ত দ্রব্যের দোষ বা গুণ— তিক্ততা, তরুণের গুণ-তারুণ্য ইত্যাদি।
তদ্রপ : সৌরভ, স্বাস্থ্য, যৌবন, সুখ, দুঃখ।

[উৎস: বাংলা ভাষার ব্যাকরণ, নবম-দশম শ্রেণি ২০১৯ সংস্করণ]

ভিষক (বিশেষ্য)
অর্থ: চিকিৎসক; বৈদ্য।

[উৎস: বাংলা একাডেমি অভিধান।]

তৎসম শব্দটি হলো: দধি 
দধি =√দধ্‌+ই
দধি হলো ঈষদুষ্ণ দুধের সঙ্গে এককোষী জীবাণু মিশিয়ে স্থির অবস্থায় রেখে দেয়ার ফলে জমাটবাঁধা থকথকে টক স্বাদ খাদ্য বস্তু , দই। 

[উৎস: আধুনিক বাংলা অভিধান, বাংলা একাডেমি]

'অগ্নি' শব্দের সমার্থক শব্দ হলো-
- অনল
- বহ্নি
- পাবক
- হুতাশন
- বৈশ্বানর
- জ্বলন
- কৃশানু
- শিখাবৎ
- শিখিন
- হুতভুক
- শুচি
- পিঙ্গল
- বিশ্বপা
- অনিলসখ
- জগন্নু
- সপ্তাংশু
- হবিরশন
- হিমারিত 
- বায়ুসখ
- সর্বশুচি

অন্যদিকে, 
'বায়ু' শব্দের সমার্থক শব্দ- 'আশুগ'

[উৎস: ভাষা - শিক্ষা, হায়াৎ মামুদ; বাংলা ভাষা ও সাহিত্য জিজ্ঞাসা, ড. সৌমিত্র শেখর।]

'ইতর বিশেষ' বাগধারাটির অর্থ - প্রভেদ বা পার্থক্য;
'গভীর জলের মাছ' বাগধারার অর্থ - চালাক লোক;
'ঝাঁকের কৈ' বাগধারাটির অর্থ - একই দলের লোক।
'রুই-কাতলা' বাগধারাটির অর্থ - প্রতিপত্তিশালী লোকজন 

[উৎসঃ বাংলা ভাষা ও সাহিত্য জিজ্ঞাসা-ড. সৌমিত্র শেখর

Adept (Adjective)
Meaning: Very skilled or proficient at something.
Synonym: expert, proficient, accomplished, skilful, talented, gifted, masterly, virtuoso, consummate, peerless
Example: She is adept at cutting through red tape.

Adept (Noun)
Meaning: A person who is skilled or proficient at something.
Synonym: expert, past master, master, master hand, genius, virtuoso, maestro, doyen, artist, professional, veteran, old hand
Example: He is an adept at imitation.

According to the explanation and examples that are given above, 'adept' is the appropriate word to fill in the blank.
Complete Sentence: She's very adept at dealing with the media.
অর্থ: তিনি মিডিয়ার সাথে সম্পর্ক বজায় রাখতে খুব পারদর্শী।

Source: Oxford Dictionary

অস্পষ্ট এড়াতে Relative Pronoun এবং Antecedent পাশাপাশি বসে।
Antecedent ব্যক্তিবাচক হলে Relative Pronoun হিসেবে সাধারণত who বসে।
তবে who না থাকলে that কে ব্যবহার করা যায়।
Complete Sentence:  The person who lost a briefcase may claim it in the lobby.

The correct word will be `because'. The sentence implies here the reason as to why many industries hesitate to adopt pollution control measures.

'seat' can be used as a verb transitive.
(১) seat oneself; be seated (আনুষ্ঠানিক) উপবেশন করা।
(২) বসানো; আসন থাকা; a hall that seats  1000.

The vice-president will be seated by the chairman at the banquet.
অর্থ: ভোজনসভায় চেয়ারম্যান এর সৌজন্যে ভাইস প্রেসিডেন্ট আসন গ্রহণ করবেন। 

উৎস: বাংলা একাডেমি অভিধান

Enthusiasm (noun)
English Meaning: intense and eager enjoyment, interest, or approval.
Synonym: appetite, ardor, avidity, avidness, desirousness, eagerness, excitement
Antonyms: apathy, indifference

Source: Merriam-Webster Dictionary

ORTHODOX (Adjective)
Meaning: authorized or generally accepted theory, doctrine, or practice.
Synonym: ceremonial, ceremonious, conventional, formal, regular, routine
Antonym: unauthorized, unofficial, casual, freewheeling, informal, irregular, unceremonious, unconventional, unorthodox

Source: Merriam-Webster Dictionary

dissolution (noun)
Meaning:  the act or process of dissolving
Synonym: bifurcation, breakup, cleavage, disunion, division, fractionalization, fractionation, partition, schism, scission, separation, split, sundering
Antonym: unification, union

Source: Merriam-Webster Dictionary

PROTRACT (noun)
English Meaning: to prolong in time or space.
Synonyms: drag (out), draw out, elongate, extend, lengthen, outstretch, prolong, stretch
Antonyms: abbreviate, abridge, curtail, cut, cut back, shorten

Source: Merriam-Webster Dictionary

Gaunt (adjective)
meaning: (of a person) lean and haggard, especially because of suffering, hunger, or age.
Synonym: haggard, drawn, cadaverous, skeletal, emaciated, skin-and-bones
Antonym: plump, beefy, brawny, burly, fit, hale, healthy

Source: Oxford Dictionary, Merriam-Webster Dictionary

DECADENT (noun)
English Meaning: characterized by or reflecting a state of moral or cultural decline.
Synonyms: dissolute, dissipated, degenerate, corrupt,depraved, louche
Antonyms: undecadent, ethical

Source: Merriam-Webster Dictionary

Depth is the distance from the top or surface to the bottom of something.

Height is the measurement of someone or something from head to foot or from base to top.

We use depth when we measure distance from the bottom of sea.
and we use height when we measure distance from the top of mountain.

Perpetual (Adjective):
Meaning: Never ending or changing.
Bangla Meaning: অনন্ত; অন্তহীন; বিরতিহীন।
Synonyms: everlasting, never-ending, eternal, permanent, unending, endless, without end, lasting, long-lasting, constant, abiding, enduring, perennial, timeless, ageless, deathless, undying, immortal

Antonyms: transitory, temporary

[Source: Oxford dictionary]

We arrange the numbers in ascending order:
2, 12, 18, 24
the median of the numbers = (12 + 18)/2 = 30/2 = 15

a² - b²
= (a + b)(a - b)
= 12 × 4
= 48

John's present age = 27 + 9 = 36

n years ago, his age = (36 - n) years

x + 9 > 12 ⇒ x > 3
x - 7 < 2  ⇒ x < 9
We get, 3 < x < 9

The sum of 15, 6, 14 and 15 = 15 + 6 + 14 + 15 = 50
The sum of 1, 17, x and x + 2 = 1 + 17 + x + x + 2 = 20 + 2x
Therefore, 20 + 2x = 50
⇒ 2x = 50 - 20 = 30
⇒ x = 15

m = 15; (30 + 2m)/m = (30 + 2 × 15)/15 = 4 which is an integer.
For m = 40, 25 or 20; (30 + 2m)/m is not a integer.

2 × even integer = even integer
So, 2a is an even integer
even integer + odd integer = odd integer
So, (2a + b) must be an odd integer.

Given that, 
(m/n)^{y - 1} = (n/m)^{y - 3}
⇒ (m/n)^{y - 1} = (m/n)^{-(y - 3)}
⇒ y -1 = - (y - 3)
⇒ y -1 =- y +3 
⇒ y + y = 3 + 1
⇒ 2y = 4 
⇒ y = 4/2 
∴ y = 2

If the rate is r%,
600 × r × 4/100 + 600 × r × 2/100 = 180
or, r = 5%

C.I. when interest compound yearly
= Tk. [5000 × (1 + 4/100) (1 + 1/2 × 4/100)]
= Tk. 5304.

C.I. when interest is compounded half-yearly
= Tk. 5000 (1 + 2/100)3
= Tk. 5306.04

Difference
= Tk. (5306.04 - 5304)
= Tk. 2.04

ধরি 
হল ঘরের উচ্চতা = h
দেওয়া আছে, 
         ঘরের দৈর্ঘ্য 20 মি.
          ঘরের প্রস্থ 10 মি. 

প্রশ্নমতে, 
 2 ( 20 × 10 ) = 2 × ( 20 + 10 ) × h 
বা, 2 × 30 × h = 2 ( 20 × 10 )
বা, h  × 30 = 200
বা, h = 20/3
আমরা জানি,
আয়তন= 20 × 10 × 20/3
             = 1333.33 ঘন মিটার

The ratio of times taken by Aman and Atique
= 120 : 100
= 6: 5
Suppose Aman takes x days to do the work.
6 : 5 = 30 : x
or, 6x = 150
     x = 25 days

Volume of the block
= (4 × 12 × 8) cm³
= 384 cm³

Side of the largest cube
= H.C.F of 4 cm, 12 cm, 8 cm
= 4 cm.

Volume of this cube = (4 × 4 × 4) cm³
= 64 cm³

Number of cubes
= 384/64
= 6

Greatest prime number = 97
Least prime number = 2
So, their difference = 79 - 2 = 77

Place value of 6 = 60
Face value of 6 = 6
Difference = 60 - 6
= 54

A tap can fill a tank in 4 hours.
Therefore the tap can fill half the tank in 2 hours.

Remaining = 1/2

After half the tank is filled, three more similar taps are opened.
Hence, the total number of taps becomes 4.

Part filled by one tap in 1 hour = 1/4
Part filled by four taps in 1 hour = 4 × (1/4) = 1
i.e., 4 taps can fill the remaining half in 30 minutes.

Total time taken
= 2 hour + 30 minute = 2 hour 30 minutes.

We have: l - b = 30 and
2(l + b) = 500
or l + b = 250

Solving the two equations,
we get:
l = 140 and b = 110
∴ Area
= (l x b)
= (140 x 110) m²
= 15400 m²

Speed of first train = 120 /10 = 12 m/s
Speed of second train = 120/15 = 8 m/s
If they travel in opposite direction, relative speed = 12 + 8 = 20 m/s
Distance covered = 120 + 120 = 240 meters

Time
= (240/20) seconds
= 12 seconds

ধরি, f(x) = 3x² + ax + a +3
যেহেতু, x + 2 দ্বারা বিভাজ্য সেহেতু,
f(-2) = 0 হবে
⇒ 3(-2)² + a(-2) + a + 3 = 0
⇒ 12 - 2a + a + 3 = 0
⇒ - a + 15 = 0
⇒ a = 15

Sellers market denotes a situation where demand exceeds supply. It is a situation of excess demand. As a consequence, the price of the product gets risen as seller wants to make more profit.

There are 54 countries in the Commonwealth, in Africa, Asia, the Americas, Europe and the Pacific. Commonwealth countries are diverse – they are amongst the world’s biggest, smallest, richest and poorest countries.
32 of our members are classified as small states. Small states are especially vulnerable to things like climate change or developmental challenges.
Maldives is commonwealth's 54th and latest member who officially re - joined the Commonwealth on February 1, 2020.

[Source: commonwealth.org.]

In the War of Liberation in 1971 the whole geographical area of the then East Pakistan was strategically divided into eleven sectors with a sector commander for each of them. For better efficiency in military operations each of the sectors were divided into a number of sub-sectors under a commander.

Sector 2 comprised of the districts of Dhaka, Comilla, and Faridpur, and part of Noakhali district.
This sector was raised from the nucleus of 4 East Bengal and the EPR troops of Comilla and Noakhali.

[Source: banglapedia.org]

Vitamin B1, also known as thiamine, is a vitamin found in food and used as a dietary supplement. As a supplement, it is used to treat and prevent thiamine deficiency and disorders that result from it, including beriberi, Korsakoff's syndrome, and Korsakoff's psychosis. Beriberi is a deficiency disease caused by inadequately low amounts of Vitamin B1. Vitamins B is a class of water-soluble vitamins. Vitamin B refers to several different types of vitamins that, together, are known as the B-complex vitamins.

Ms-word - word-processing program
Ms-power point - slideshow/presentation program
Ms-excel - spreadsheet program
Ms-access - DBMS program

- Fermentation is the process by which molecules such as glucose are broken down anaerobically.
- By the process of fermentation, the sugars are converted into alcohol.
- The enzymes like pyruvic acid decarboxylase and alcohol dehydrogenase catalyze these reactions.
- It normally occurs in yeast cells bacteria and in the muscles of animals.
- It is a method of extracting energy from molecules.
- Fermentation accounts for only a partial breakdown of glucose.
- In fermentation, there is a net gain of only two molecules of ATP for each molecule of glucose degraded to pyruvic acid.
- Wine and beer are produced by fermentation.
- No ATP would be produced without fermentation.

The lower limit of perpetual snow in mountains such as the Himalayas is termed as the snow line. The snow line is an irregular line located along the ground surface where the accumulation of snowfall equals ablation (melting and evaporation).

The Bretton Woods Conference, officially known as the United Nations Monetary and Financial Conference, was a gathering of delegates from 44 nations that met from July 1 to 22, 1944 in Bretton Woods, New Hampshire, to agree upon a series of new rules for the post-WWII international monetary system. The two major accomplishments of the conference were the creation of the International Monetary Fund (IMF) and the International Bank for Reconstruction and Development (IBRD).

[Source:The Bretton Woods Conference, 1944]

General Assembly resolution 377(V) is known as the Uniting for peace resolution. Adopted in 1950, the resolution resolves that if the Security Council, because of lack of unanimity of the permanent members, fails to exercise its primary responsibility to act as required to maintain international peace and security..., the General Assembly shall consider the matter immediately with the view to making recommendations to Members...in order to restore international peace and security. If not in session, the General Assembly may meet using the mechanism of the emergency special session.

[Source:un.org]

The ozone layer is found in Stratosphere.
Stratosphere -
- It is the second layer of the atmosphere found above the troposphere.
- It extends up to 50 km in height.
- This layer provides some advantages for flight because it is above stormy weather and has steady, strong, horizontal winds.
- The ozone layer is found in this layer.
- The ozone layer absorbs UV rays and safeguards the Earth from harmful radiation.
- Stratopause separates the stratosphere and mesosphere.

Different Branches of Study
Branch                      Study of
Entomology             Insects
Myology                  Muscles
Hormonology         Hormones
Mycology                Fungi
Nephrology             Kidney
Paleontology           Fossils
Pedology                 Soils
Cardiology               Heart
Dermatology           Skin
Hematology            Blood

The standard toolbar provides a quick shortcut to many frequently used functions. You can customize the buttons that appear on the standard toolbar using the customize toolbar menu item. Standard toolbar functions are file commands, window commands etc.

A function key is a key on a computer keyboard to perform certain actions.
The function keys are arranged on the top of the computer keyboard numbered across from F1 to F12.
The keys are frequently used in combination with other keys such as the CTRL key, the ALT key, and the SHIFT key.
The function keys provide some interesting shortcuts for common computer functions that can be useful tools in everyday computing.

F1 function key is used for opening help.
F2 - To rename a selected file or folder.
F3 - To search for a file or folder.
F4 - To close the active window with the Alt key
F5 - To refresh or reload the current page.
F6 - To move the cursor to the address bar in most web browsers.
F7 - To spell-check and grammar check
F8 - To access the boot menu in Windows
F9 - Refresh a document in MS word F10 Activate the menu bar of the application
F11 - Enter and exit full screen in web browsers
F12 - Open the Save as dialog box in MS word

Virtual Keyboard is an online application to enter password with the help of a mouse.
The Virtual Keyboard is designed to protect your password from malicious “Spyware” and “Trojan Programs”.
Use of Virtual keyboard will reduce the risk of password theft.

To apply center alignment to a paragraph we can press Ctrl + E.
Some other important Shortcut keys:
Ctrl + J -- Justify paragraph alignment.
Ctrl + L -- Align selected text or line to the left.
Ctrl + Q -- Align selected paragraph to the left.
Ctrl + R -- Align selected text or line to the right.

Source: www.support.microsoft.com

Home Page:
- The home page is the main page of a website.
- The home page is known as the initial page.
- It is also known as the start page.
- The term home page can also refer to one or more pages always shown in a web browser when the application starts up.

Alternatively known as Control+A,
Ctrl + A is a keyboard shortcut most often used to select all text, files, pictures, or other objects while in a graphical user environment.