Aptitude and Reasoning Questions

Q:

If 36 men can do a piece of work in 25 hours, in how mwny hours will15 men do it?

A) 40 B) 50
C) 60 D) 70
 
Answer & Explanation Answer: C) 60

Explanation:

Let the required no of hours be x. Then

 

Less men , More hours    (Indirct Proportion)

 

Therefore,  15:36 ::25:x 

=> (15 x X)=(36 x 25)  => x = 60

 

Hence, 15 men can do it in 60 hours.

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Filed Under: Chain Rule

96 28117
Q:

If 1!9 = -80, 2!8 = -60 and 8!1 = 70, then find the value of 3!2 = ?

 

A) -20   B) -120  
C) 100   D) 10
 
Answer & Explanation Answer: D) 10

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

0 28113
Q:

In the following question, select the missing number from the given series.

2187, 729, 243, 81, 27, ?

A) 10 B) 9
C) 13 D) 11
 
Answer & Explanation Answer: B) 9

Explanation:
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Filed Under: Number Series
Exam Prep: Bank Exams

0 28113
Q:

A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?

A) 3 hrs 15 min B) 3 hrs 45 min
C) 4 hrs 15 min D) 4 hrs 1
 
Answer & Explanation Answer: B) 3 hrs 45 min

Explanation:

Time taken by one tap to fill half of the tank = 3 hrs.

 

  Part filled by the four taps in 1 hour =4*1/6 =2/3

 

Remaining part =1-12=12

 

23:12::1:x

 

=> x = 12*1*32=34

 

So, total time taken = 3 hrs. 45 mins.

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Filed Under: Pipes and Cistern

85 28087
Q:

If in the word 'DISTURBANCE', the first letter is interchanged with the last letter, the second letter is interchanged with the tenth letter and so on, which letter would come after the letter T in the newly formed word ?

A) S B) I
C) T D) N
 
Answer & Explanation Answer: A) S

Explanation:

The new letter sequence is E C N A B R U T S I D

Clearly, S comes after T

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Filed Under: Alphabet Test

896 28085
Q:

The difference between the compound interest and the simple interest accrued on an amount of Rs. 18,000 in 2 years was Rs. 405. What was the rate of interest p.c.p.a. ?

A) 12% B) 13%
C) 14% D) 15%
 
Answer & Explanation Answer: D) 15%

Explanation:

Let the rate be R% p.a. Then,

 

18001+R1002-1800-1800*R*2100=405

1800100+R210000-1-2R100=405

 1800100+R2-10000-200R10000=405

95*R2=405 R2=405*59=225R=15 
Rate = 15%.

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

23 28082
Q:

Read the data given and answer the following questions

 

In a class of 60 students:

 

42 like Maths,

32 like English,

12 like neither Maths nor English

 

How many students like both Maths and English?

A) 28 B) 26
C) 16 D) 12
 
Answer & Explanation Answer: B) 26

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

1 28080
Q:

The area of a rectangle is 460 square metres. If the length is 15% more than the breadth, what is the breadth of the rectangular field?

A) 20 m B) 30 m
C) 40 m D) 50 m
 
Answer & Explanation Answer: A) 20 m

Explanation:

Let breadth=x meters.   Then, Length =115x100 meters 

Given that, x×115x100=460  

=> x = 20  

Breadth = 20 

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

34 28080