Exams Questions and Answers

Q:

Consider the following grouped frequency distribution:

x f

0-10 8

10-20 12

20-30 10

30-40 p

40-50 9

If the mean of the above data is 25.2, then what is the value of p?

A) 9	B) 10
C) 11	D) 12

Answer & Explanation Answer: C) 11

Explanation:

Mean = (sum of fixi/ (sum of f) = (8*5 + 12*15 + 10*25 + P*35 +9*45) / (8+12+10+P+9) = 25.2

(875 + 35P)/(39+P) = 25.2

P = 11

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Filed Under: Average
Exam Prep: Bank Exams

0 29832

Q:

Find the length of a rope by which a cow must be tethered in order that it may be able to graze an area of 9856 sq meters.

A) 56m	B) 16m
C) 14m	D) 76m

Answer & Explanation Answer: A) 56m

Explanation:

clearly the cow will graze a circular field of area 9856 sq m and radius equal to the length of the rope.

Let the length of the rope be r mts

then, ${πr}^{2} = 9856 \Rightarrow r^{2} = \frac{9856 \times 7}{22} = 3136 \Rightarrow r = 56 m$

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Filed Under: Area
Exam Prep: Bank Exams
Job Role: Bank PO

31 29812

Q:

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

14 + 18 x 40 - 10 ÷ 20 = 66

A) + and x	B) + and ÷
C) - and +	D) ÷ and -

Answer & Explanation Answer: D) ÷ and -

Explanation:

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

1 29798

Q:

The ratio of salary : expenditure per year during period 2001 : 2006 is

A) 105/71	B) 216/61
C) 71/108	D) 71/105

Answer & Explanation Answer: B) 216/61

Explanation:

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Filed Under: Table Charts
Exam Prep: Bank Exams

0 29796

Q:

The National Game of Japan is

A) Tennis	B) Karate
C) Ice Hockey	D) Sumo wrestling

Answer & Explanation Answer: D) Sumo wrestling

Explanation:

Sumo wrestling is the Japan origin game in which the two heavy weight wrestlers fight in a marked circle to throw the opponent out of the circle to win the game. And the two participants in the game are called Sumos.

national_game_of_japan_is1536138492.jpg image

Hence, sumo wrestling is the national sport of Japan.

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Filed Under: Sports
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

91 29792

Q:

Several computers linked to a server to share programs and storage space________

A) Network	B) Grouping
C) Library	D) Integrated system

Answer & Explanation Answer: A) Network

Explanation:

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Filed Under: Computer
Exam Prep: Bank Exams

73 29776

Q:

On selling 17 balls at Rs. 720, there is a loss equal to the cost price of 5 balls. The cost price of a ball is ?

A) Rs. 55	B) Rs. 60
C) Rs. 65	D) Rs. 70

Answer & Explanation Answer: B) Rs. 60

Explanation:

Let the cost price of a ball is Rs.x
Given, on selling 17 balls at Rs. 720, there is a loss equal to the cost price of 5 balls
The equation is :
17x - 720 = 5x
Solving the equation
we get x = 60
Therefore, cost price of a ball is Rs. 60.

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Filed Under: Profit and Loss
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank Clerk , Bank PO

36 29776

Q:

Select the figure which does NOT belong to the group.

A) C	B) B
C) A	D) D

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