Aptitude and Reasoning Questions

Q:

Two typists of varying skills can do a typing jobin6 minutesifthey work together.Ifthe first typist typed alone for 4 minutes and then the second typist typed alone for 6 minutes, they would be left with 1/5 of the whole work.Howmany minutes would it take the slower typist to complete the typing job working alone?

A) 10 minutes B) 15 minutes
C) 12 minutes D) 20 minutes
 
Answer & Explanation Answer: B) 15 minutes

Explanation:

Working efficiency of both typist together = 100/6 = 16.66%

Let the efficiency of first typist be x and second typist be (16.66 –x)

First typist for 4 minute + second tyoistfor 6 minute = 80% work

⇒4x + (16.66 –x) X 6 = 80%

⇒4x + 100% -6x = 80%,

⇒x = 10%

First typist typed 10% per minute, second typst typed (16.66 –10) = 6.66% per minute

Slowest is second typist complete whole job in 100/6.66 = 15.01 = 15 minute

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Filed Under: Time and Work
Exam Prep: Bank Exams

1 3738
Q:

Identify the diagram that best represents the relationship among classes given below: ELEPHANTS, WOLVES, ANIMALS

1)

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

Explanation:
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Filed Under: Logical Venn Diagram

6 3738
Q:

The Finance Minister submits his resignation a month before the new budget is to be presented in the Parliament.

 

Courses of Action:

I. The resignation should be accepted and another person should be appointed as the Finance Minister.

II. The resignation should not be accepted.

A) Only I follows B) Only II follows
C) Neither I nor II follows D) Both I and II follow
 
Answer & Explanation Answer: B) Only II follows

Explanation:

Clearly, an already working Finance Minister shall know better all the plans and resources of the Government and he alone can present a suitable budget. So, course II follows.

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Q:

B starts 4 minutes after A from the same point, for a place at a distance of 7 miles from the starting point. A on reaching the destination turns back and walks a mile where he meets B. If A's speed is a mile in 8 minutes then B's speed is a mile in ____ minutes.

A) 9 B) 12
C) 10 D) 8
 
Answer & Explanation Answer: C) 10

Explanation:
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Filed Under: Time and Distance
Exam Prep: Bank Exams

8 3731
Q:

What are the 2 natural numbers, sum of whose squares is 52?

A) 2, 7 B) 3, 5
C) 4, 6 D) 5, 6
 
Answer & Explanation Answer: C) 4, 6

Explanation:
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Filed Under: Square Roots and Cube Roots
Exam Prep: Bank Exams

3 3731
Q:

Which of the following is not a prime number?

A) 5 B) 11
C) 21 D) 37
 
Answer & Explanation Answer: C) 21

Explanation:

A prime number is a whole number greater than 1 whose only factors are 1 and itself.

 

Factors of 5 are 1, 5

Factors of 11 are 1, 11

Factors of 21 are 1, 3, 7, 21

Factors of 37 are 1, 37.

 

Hence, according to the definition of a prime number, 21 is not a prime number as it has more than two factors.

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

6 3730
Q:

 7, 16, 36, 78, 144, ?

which number come in place of question mark

A) 168 B) 196
C) 222 D) 256
 
Answer & Explanation Answer: C) 222

Explanation:
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Filed Under: Numbers
Exam Prep: Bank Exams
Job Role: Bank PO

43 3728
Q:

In a certain code language, "MOBILE" is written as "OQDKNG". How is "RANGER" written in that code language?

A) TCPIGT B) TCPGIT
C) TPCIGT D) GTTCPT
 
Answer & Explanation Answer: A) TCPIGT

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

3 3727