Exams Questions and Answers

Q:

36 identical books must be arranged in rows with the same number of books in each row. Each row must contain at least three books and there must be at least three rows. A row is parallel to the front of the room. How many different arrangements are possible ?

A) 5	B) 6
C) 7	D) 8

Answer & Explanation Answer: A) 5

Explanation:

The following arrangements satisfy all 3 conditions.

Arrangement 1: 3 books in a row; 12 rows.

Arrangement 2: 4 books in a row; 9 rows.
Arrangement 3: 6 books in a row; 6 rows.
Arrangement 4: 9 books in a row; 4 rows.
Arrangement 5: 12 books in a row; 3 rows.

Therefore, the possible arrangements are 5.

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Filed Under: Permutations and Combinations
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

8 4872

Q:

Train A, travelling at 84 kmph, overtook train B, traveling in the same direction, in 10 seconds. If train B had been traveling at twice its speed, then train A would have taken 22.5 seconds to overtake it. Find the length of train B, given that it is half the length of train A.

A) 180 m	B) 100 m
C) 200 m	D) 150 m

Answer & Explanation Answer:

Explanation:

Let speed of train B be x m/s And length of train B be y m
Then length of train A is 2y m
Speed of train A = 84 × 5/18 = 210/9 m/s = 70/3 m/s
A.T.Q, (2y+y)/10 = 70/3 − x .............(i)
and (2y+y)/ 22.5 = 70/3 − 2x ................(ii)
solving (i) and (ii), y = 50 m

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams , GATE

0 4872

Q:

It takes one minute to fill 2/7 th of a vessel. What is the time taken in minutes to fill the whole of the vessel ?

A) 1/7 min	B) 7/2 min
C) 5/7 min	D) 7/5 min

Answer & Explanation Answer: B) 7/2 min

Explanation:

Time taken to fill 2/7 = 1
Then to fill full 1 = ?
? = 1/(2/7) = 7/2 minutes.

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Filed Under: Time and Work
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

3 4871

Q:

What does this symbol mean '&'?

A) Caret	B) Bar
C) Ampersand	D) Reversed Caret

Answer & Explanation Answer: C) Ampersand

Explanation:

'&' is a Logical Symbol and is called as Ampersand.

^ is called Caret

- is called Bar

v is called Reversed Caret.

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Filed Under: Analytical Reasoning
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank Clerk

17 4871

Q:

The enzyme that is necessary to bring about clotting of blood is

A) peptidase	B) amylase
C) lipase	D) thrombokinase

Answer & Explanation Answer: D) thrombokinase

Explanation:

The clotting of blood is a chain reaction initiated by the enzyme thrombokinase produced by the platelets. This causes prothrombin to be converted into thrombin in the presence of $C a^{+ +}$ ion.

Thrombin combines with fibrinogen to produce fibrin threads which entangles the corpuscles to form the clot.

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Filed Under: Biology
Exam Prep: AIEEE , GATE

8 4870

Q:

World’s first oil paintings have been found in which of the following countries ?

A) China	B) Afghanistan
C) India	D) Pakistan

Answer & Explanation Answer: B) Afghanistan

Explanation:

In Afghanistan, Bamiyan caves.

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Filed Under: General Awareness
Exam Prep: Bank Exams , CAT

10 4870

Q:

Hill : Mountain :: Stream : ____

A) Canal	B) Glacier
C) River	D) Dam

Answer & Explanation Answer: C) River

Explanation:

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Filed Under: Analogy
Exam Prep: Bank Exams

20 4870

Q:

Consider the argument and decide which of the given assumptions is/are implicit.

Argument :

Akbar said to his queen, "Birbal is the wisest man in my kingdom."

Assumptions :

1. Akbar is not as wise as Birbal.

2. Akbar wants Birbal to become the next King.

A) Only assumption 2 is implicit	B) Neither 1 nor 2 is implicit
C) Both 1 and 2 are implicit	D) Only assumption 1 is implicit

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