Aptitude and Reasoning Questions

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, πr2=9856  r2=9856×722=3136 r =56m

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

31 29811
Q:

Two stations P and Q are 110 km apart on a straight track. One train starts from P at 7 a.m. and travels towards Q at 20 kmph. Another train starts from Q at 8 a.m. and travels towards P at a speed of 25 kmph. At what time will they meet?

A) 10.30 B) 10
C) 8.45 D) 9.30
 
Answer & Explanation Answer: B) 10

Explanation:

Assume both trains meet after x hours after 7 am

Distance covered by train starting from P in x hours = 20x km

Distance covered by train starting from Q in (x-1) hours = 25(x-1)

Total distance = 110

=> 20x + 25(x-1) = 110

=> 45x = 135

=> x= 3

Means, they meet after 3 hours after 7 am, ie, they meet at 10 am

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Filed Under: Problems on Trains

42 29778
Q:

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

 

30 ÷ 2 - 10 x 6 + 5 = 35

 

A) + and ÷ B) - and +
C) ÷ and x D) + and x
 
Answer & Explanation Answer: D) + and x

Explanation:
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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

1 29767
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 29762
Q:

Find the missing number in the given number series?

1 8 36 ? 1100 7701

A) 97 B) 129
C) 164 D) 183
 
Answer & Explanation Answer: D) 183

Explanation:

The given number series is 1 8 36 ? 1100 7701

It follows a pattern that,

 

1

1 x 3 + 5 = 8

8 x 4 + 4 = 36

36 x 5 + 3 = 183

183 x 6 + 2 = 1100

1100 x 7 + 1 = 7701

 

Hence, the missing number in the given series is 183.

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Filed Under: Number Series
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

13 29761
Q:

'A' sold an article to 'B' at a profit of 20%. 'B' sold the same article to 'C' at a loss of 25% and 'C' sold the same article to 'D' at a profit of 40%. If 'D' paid Rs 252 for the article, then find how much did 'A' pay for it?

A) Rs.196 B) Rs.210
C) Rs.200 D) Rs.235
 
Answer & Explanation Answer: C) Rs.200

Explanation:

Let the article costs 'X' to A
Cost price of B = 1.2X
Cost price of C = 0.75(1.2X) = 0.9X
Cost price of D = 1.4(0.9X) = 1.26X = 252
Amount paid by A for the article = Rs. 200.

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

47 29745
Q:

Arrange the following words as per order in the dictionary

1. Ambitions
2. Ambiguous
3. Ambiguity
4. Animation
5. Animal

A) 3 ,2 , 4 , 1 , 5 B) 3 , 2 , 5 , 4 , 1
C) 3 , 2 , 1 , 5 , 4 D) 3 , 2 , 4 , 5 , 1
 
Answer & Explanation Answer: C) 3 , 2 , 1 , 5 , 4

Explanation:
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Filed Under: Logical Sequence of Words
Exam Prep: Bank Exams

0 29721
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 29709