Exams Questions and Answers

Q:

There are 100 students in 3 sections A, B and C of a class. The average marks of all the three sections was 84. The average of B and C was 87.5 and the average marks of students in A section was :

A) 20	B) 35
C) 54	D) 40

Answer & Explanation Answer: A) 20

Explanation:

Numbers of students in section A = x
∴ Numbers of students in section B and C = (100 – x)
∴ x 70 + (100 – x) 87.5 = 84 100
=> 70x + 87.5 100 – 87.5x = 8400
=> 8750 – 17.5x = 8400
=> 17.5x = 8750 – 8400 => x = 20.

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Filed Under: Average
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

26 12077

Q:

Study the following information carefully and answer the questions given below it.

There are 6 persons in a family - three males and three females. Out of these, there are two married couples and two persons who are unmarried. Each one of them likes different colour, viz. Blue, Red, Pink, Green, Yellow and white.

Seema, who likes Red colour, is Anitha's mother-in-law and Anitha is Raja's wife. Dinesh is Rohan's father and he does not like the blue colour or white colour. Bavya likes the yellow colour and is Rohan's sister, who likes Pink colour, Raja does not use White colour.

How is Rohan related to Seema?

A) Brother	B) Son
C) Father	D) None of these

Answer & Explanation Answer: B) Son

Explanation:

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Filed Under: Arithmetical Reasoning
Exam Prep: Bank Exams

1 12072

Q:

A boat loaded with rocks floats in the middle of a swimming pool. A man in the boat throws the rocks overboard. The level of water in the pool will

A) increase	B) decrease
C) remains the same	D) first decrease and then increase

Answer & Explanation Answer: B) decrease

Explanation:

Let M and m grams be the mass of boat + rock in it. By law of floatation(M+m) grams of water will be displaced. This has a volume of (M+m)cc. That means the level of water in pool has risen up by (M+m)cc with the boat + rock when it is floating. If the rocks in the boat are thrown not into the pool but outside, the weight left is only M grams the weight of the boat. This will have displaced M cc of water only i.e less water than in the case of loaded boat. But if the rocks are put in the water in the pool and not outside, then the water in the pool will rise not only by M cc on account of empty boat but also by a volume of the stone put into it. This volume will be $\frac{m}{d}$ where m is the mass of rock and d density of rock.

Now $\frac{m}{d}$ is < m. Thus the total rise will be $(M + \frac{m}{d})$ which is < M + m.

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Filed Under: Physics
Exam Prep: AIEEE , CAT
Job Role: Analyst

36 12069

Q:

96 is divided into two parts in such a way that seventh part of first and ninth part of second are equal. Find the smallest part ?

A) 42	B) 54
C) 46	D) 58

Answer & Explanation Answer: A) 42

Explanation:

Let x and y be the two parts of 96.

x/7 = y/9 => x:y = 7:9

=> The smallest part is = 7/16 x 96 = 42.

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Filed Under: Problems on Numbers
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

7 12068

Q:

How much time will it take for an amount of Rs. 450 to yield Rs. 81 as interest at 4.5% per annum of simple interest?

A) 3.5 years	B) 4 years
C) 4.5 years	D) 5 years

Answer & Explanation Answer: B) 4 years

Explanation:

Time = (100 x 81)/(450 x 4.5) years

= 4 years.

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Filed Under: Simple Interest
Exam Prep: GRE

11 12065

Q:

How many quarters in a football game?

how many quarters in a football game

A) 2	B) 3
C) 4	D) 0

Answer & Explanation Answer: C) 4

Explanation:

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Filed Under: Sports
Exam Prep: Bank Exams

1 12059

Q:

Which of the following pair is CORRECT?

I. Summer Olympics 2020 - Tokyo
II. Summer Olympics 2016 - Rio de Janeiro
III. Summer Olympics 2012 - London

A) Only I and II	B) Only I and III
C) Only II and III	D) All are correct

Answer & Explanation Answer: D) All are correct

Explanation:

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Filed Under: Sports
Exam Prep: Bank Exams

2 12053

Q:

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

Argument :

The Supreme Court has decided that all rapists will be hanged till death.

Assumptions :

1. Women will get protection.

2. The number of rapes cases can be reduced.

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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