Aptitude and Reasoning Questions

Q:

A can do a piece of work in 21 days and B in 28 days. Together they started the work and B left after 4 days. In how many days can A alone do the remaining work ?

A) 14 days B) 18 days
C) 21 deays D) 16 days
 
Answer & Explanation Answer: A) 14 days

Explanation:

Let A worked for x days.

x/21 + 4/28 = 1  => x = 18

 

A worked for 18 days. So, A can complete the remaining work in 18 - 4 = 14 days.

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Q:

Identify the diagram that best represents the relationship among the given classes.

Earth, Saturn, Planet, Star

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

Explanation:
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Q:

Refer the below data table and answer the following question.

What is the value of total stock in lakh rupees?

 

A) 101.91 B) 1019.1
C) 133 D) 398
 
Answer & Explanation Answer: A) 101.91

Explanation:
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Q:

Refer the below data table and answer the following question.

What was the revenue of the company if its Expenditure was Rs. 475 crore in the year when its % profit was the least?

A) 570 B) 617.5
C) 475 D) 522.5
 
Answer & Explanation Answer: D) 522.5

Explanation:
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Q:

Refer the below data table and answer the following question.

How many cars were manufactured in the month of April and May?

 

A) 1070 B) 1120
C) 1220 D) 4130
 
Answer & Explanation Answer: B) 1120

Explanation:
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Q:

Refer the below data table and answer the following question.

Software was what percent of total exports?

A) 20 percent B) 22.5 percent
C) 25 percent D) 17.5 percent
 
Answer & Explanation Answer: A) 20 percent

Explanation:
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Q:

Find out from amongst the four alternatives as to how the pattern would appear when the transparent sheet is folded at the dotted line.

     (X)                      (1)                  (2)                  (3)                  (4)

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

Explanation:
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Q:

Main street high school has 10 members on its football team and 14 members on its science club. 5 members at the school belong to both the football and science teams. How many students belong to only science club team or football team?

A) 9 B) 14
C) 24 D) 21
 
Answer & Explanation Answer: A) 9

Explanation:

Given that,

Members in football team = n(f) = 10

Members in science club = n(s) = 14

Members in both football team and science club = n(f ^ s) = 5

 

Then, Members in only football team = n(F) = 10 - 5 = 5

Members in only science team = n(S) = 14 - 5 = 9

football_science_teams1533013879.jpg image

 

Hence, members in only football or science team = n(FUS) = n(F) + n(S) - n(f^s) 

= 9 + 5 - 5

= 9.

 

Hence, many students belong to only science club team or football team = 9.

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