Aptitude and Reasoning Questions

Q:

 In a dairy farm, 40 cows eat 40 bags of husk in 40 days. In how many days one cow will eat one bag of husk?

A) 1 B) 1/40
C) 40 D) 80
 
Answer & Explanation Answer: C) 40

Explanation:

Let the required number of days be x.

 

Less cows, More days (Indirect Proportion)

 

Less bags, Less days (Direct Proportion)

 

cows  1:40 :40:xbags   40:1 :40:x

 

1 x 40 x x = 40 x 1 x 40

 

=>  x = 40.

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Filed Under: Chain Rule

10 12327
Q:

A train with 120 wagons crosses Arun who is going in the same direction, in 36 seconds. It travels for half an hour from the time it starts overtaking the Arun ( he is riding on the horse) before it starts overtaking the Sriram( who is also riding on his horse) coming from the opposite direction in 24 seconds. In how much time (in seconds) after the train has crossed the Sriram do the Arun meets to Sriram?

A) 3560 sec B) 3600 sec
C) 3576 sec D) can't be determined
 
Answer & Explanation Answer: C) 3576 sec

Explanation:

Let the length of the train be L metres and speeds of the train Arun and Sriram be R, A and S respectively, then 

       LR-A=36 ---------- (i) 

and LR+K=24 ---------(ii)

 

From eq.(i) and (ii)

              3(R - A ) = 2 (R + K) 

  R = 3A + 2K 

 

In 30 minutes (i.e 1800 seconds), the train covers 1800R (distance) but the Arun also covers 1800 A (distance) in the same time. Therefore distance between Arun and Sriram, when the train has just crossed Sriram

               = 1800 ( R - A) - 24 ( A + K)

 

 Time required = 1800(R-A)-24(A+K)(A+K)

 

= (3600 - 24) = 3576 s                            

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Filed Under: Time and Distance

34 12320
Q:

The bar graph given indicates the income of a firm. Study the graph and answer the questions given.

The average monthly income of the firm (in lakh rupees) is

A) 7.6 B) 6
C) 8.8 D) None of these
 
Answer & Explanation Answer: C) 8.8

Explanation:
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Filed Under: Bar Charts
Exam Prep: Bank Exams

0 12318
Q:

How much amount Ronnie required to pay for the new car in the buy-back scheme ?

I. The cost of the new car was three times the cost price of his old car. 

II. His old car was valued at Its 25000 under buy-back scheme. 

A) If the data in statement I alone are sufficient to answer the question B) If the data in statement II alone are sufficient answer the question
C) If the data either in I or II alone are sufficient to answer the question; D) If the data in both the statements together are needed.
 
Answer & Explanation Answer: D) If the data in both the statements together are needed.

Explanation:

From both the statements together, we conclude that the price of the new car is Rs (25000 * 3) i.e. Rs 75000

So, Ronnie had to pay Rs (75000 - 25000) i.e. Its 50000.

Thus, both I and II are required 

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Filed Under: Data Sufficiency

5 12317
Q:

Refer the below data table and answer the following question.

Between 10pm to 6am, a fitness band records the following data. How long was the user is in deep sleep or was awake ?

 

A) 4.3 hours B) 4.8 hours
C) 3.3 hours D) 5.3 hours
 
Answer & Explanation Answer: B) 4.8 hours

Explanation:
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Filed Under: Table Charts
Exam Prep: Bank Exams

0 12310
Q:

Three numbers are in the ratio of 3:4:5 and their L.C.M is 3600.Their HCF is:

A) 40 B) 60
C) 100 D) 120
 
Answer & Explanation Answer: B) 60

Explanation:

Let the numbers be 3x, 4x, 5x.

 

Then, their L.C.M = 60x.

 

So, 60x=3600 or x=60.

 

Therefore,  The numbers are (3 x 60), (4 x 60), (5 x 60).

 

Hence,required H.C.F=60

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Filed Under: HCF and LCM
Exam Prep: CAT
Job Role: Bank PO

14 12307
Q:

Refer the below data table and answer the following question.

What percent students who chose engineering are girls?

A) 28.57 B) 16.22
C) 42.86 D) 75
 
Answer & Explanation Answer: C) 42.86

Explanation:
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Filed Under: Table Charts
Exam Prep: Bank Exams

0 12302
Q:

The perimeter of a square is 40 meters. Find the length of one side of the square

A) 10m B) 20m
C) 30m D) 40m
 
Answer & Explanation Answer: A) 10m

Explanation:

P = 4 x s

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

17 12297