Aptitude and Reasoning Questions

Q:

3 x 3 + 3 - 3 + 3 = ?

A) 9 B) 12
C) -3 D) 3
 
Answer & Explanation Answer: B) 12

Explanation:

Using BODMAS law,

3 x 3 + 3 - 3 + 3 =

3 x 3 = 12

= 12 + 3 - 3 + 3

=  9 + 3

= 12

 

Hence, 3 x 3 + 3 - 3 + 3 = 12.

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Q:

The difference of squares of two numbers is 180. The square of the smaller number is 8 times the larger number. Find two numbers.

A) 10 & 12 B) 10 & 18
C) 12 & -18 D) -12 & 18
 
Answer & Explanation Answer: D) -12 & 18

Explanation:

Given, difference of the squares of two numbers is 180.

k2 - l2 - 180

 

Also, square of the smaller number is 8 times the larger.

= l= 8k

 

Thus, k2 - 8a - 180 = 0

k2 – 18k + 10k - 180 = 0

→  k(k - 18) + 10(k – 18) = 0

= (k + 10)(k – 18) = 0

→  k = -10, 18

 

Thus, the other number is

324 - 180 = l2 

 

→ Numbers are 12, 18 or -12, 18.

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Filed Under: Numbers
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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0 2809
Q:

What is the reciprocal of a negative number?

Answer

The reciprocal of a negative number is always a negative number. So that the number and its reciprocal multiply to 1. 


 


All real numbers except 0 have reciprocals.

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Subject: Arithmetical Reasoning Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

3 2809
Q:

Two students appeared for an examination. One of them secured 24 marks more than the other and his marks were 65% of the sum of their marks. The marks obtained by them are _____

A) 78 and 54 B) 85 and 61
C) 67 and 43 D) 52 and 28
 
Answer & Explanation Answer: D) 52 and 28

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

1 2808
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.

A) A B) B
C) C D) D
 
Answer & Explanation Answer: D) D

Explanation:
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Filed Under: Paper Folding

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Q:

If cot2A -­ cos2A = x, then value of x is

A) tan2Asec2A B) cotAcosA
C) cot2Acos2A D) tanAsecA
 
Answer & Explanation Answer: C) cot2Acos2A

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

1 2805
Q:

The present population of a town is 26010. It increases annually at the rate of 2%. What was the population of town 2 years ago?

A) 25000 B) 25100
C) 25200 D) 25500
 
Answer & Explanation Answer: A) 25000

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

If "P" denotes "multiplied by", "R" denotes "subtracted from", "S" denotes "added to" and "Q" denotes "divided by", then which of the following equation is true?

A) 18 R 60 Q 15 S 2 = 8 B) 15 S 16 Q 2 P 4 = 47
C) 3 P 5 R 18 Q 3 = 6 D) 15 S 28 Q 4 P 2 = 27
 
Answer & Explanation Answer: B) 15 S 16 Q 2 P 4 = 47

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

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