Aptitude and Reasoning Questions

Q:

There are 5 novels and 4 biographies. In how many ways can 4 novels and 2 biographies can be arranged on a shelf ?

A) 26100 B) 21600
C) 24000 D) 36000
 
Answer & Explanation Answer: B) 21600

Explanation:

4 novels can be selected out of 5 in 5C4 ways.

2 biographies can be selected out of 4 in 4C2 ways.

Number of ways of arranging novels and biographies = 5C4*4C2  = 30

After selecting any 6 books (4 novels and 2 biographies) in one of the 30 ways, they can be arranged on the shelf in 6! = 720 ways.

By the Counting Principle, the total number of arrangements = 30 x 720 = 21600

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Q:

The year next to 2003 will have the same calendar as that of the year 2003?

A) 2024 B) 2014
C) 2009 D) 2020
 
Answer & Explanation Answer: B) 2014

Explanation:

Given year 2003, when divided by 4 leaves a remainder of 3.

NOTE: When remainder is 3, 11 is added to the given year to get the result.

So, 2003 + 11 = 2014

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Filed Under: Calendar

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Q:

Refer the below data table and answer the following question.

What percent students who chose engineering are girls?

 

A) 33.33 B) 17.39
C) 66.67 D) 50
 
Answer & Explanation Answer: A) 33.33

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

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Q:

Refer the below data table and answer the following question.

What is the average bonus (in rupees)?

A) 6960000 B) 173333
C) 220000 D) 696000
 
Answer & Explanation Answer: D) 696000

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

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Q:

Refer the below data table and answer the following question.

What is the average bonus (in Rs.) ?

A) 944000 B) 726154
C) 240000 D) 332000
 
Answer & Explanation Answer: B) 726154

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

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Q:

What is the principal sum?
I. The sum amounts to Rs. 690 in 3 years at S.I.
II. The sum amounts to Rs. 750 in 5 years at S.I.
III. The rate of interest is 5% p.a.

A) I and III only B) II and III only
C) I and II only D) Any two of the three
 
Answer & Explanation Answer: D) Any two of the three

Explanation:

Clearly, any of the three will give us the answer

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

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Q:

Consider the word ROTOR. Whichever way you read it, from left to right or from right to left, you get the same word. Such a word is known as palindrome. Find the maximum possible number of 5-letter palindromes.

A) 17756 B) 17576
C) 12657 D) 12666
 
Answer & Explanation Answer: B) 17576

Explanation:

The first letter from the right can be chosen in 26 ways because there are 26 alphabets.

 

Having chosen this, the second letter can be chosen in 26 ways

 

The first two letters can chosen in 26 x 26 = 676 ways

 

Having chosen the first two letters, the third letter can be chosen in 26 ways.

 

All the three letters can be chosen in 676 x 26 =17576 ways.

 

It implies that the maximum possible number of five letter palindromes is 17576 because the fourth letter is the same as the second letter and the fifth letter is the same as the first letter.

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Q:

Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative 

 Assertion (A) : We feel colder on mountains than on plains.

 Reason (R)    : Temperature decreases with altitude. 

A) Both A and R are true and R is the correct explanation of A. B) Both A and R are true but R is NOT the correct explanation of A.
C) A is true but R is false. D) A is false but R is true.
 
Answer & Explanation Answer: A) Both A and R are true and R is the correct explanation of A.

Explanation:

Higher above the sea level, temperature decreases at the rate of  1 degree centigarade for every 165 me-tres of ascent making mountain peaks colder. 

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Filed Under: Assertion and Reason

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