Aptitude and Reasoning Questions

Q:

Simplify the following equation

[K-L2-K+L2]4K = a/b

A) K = b /a B) bL = -a
C) KL = 1 D) aK = -b
 
Answer & Explanation Answer: B) bL = -a

Explanation:

[(K-L)2-K+L2]4K = abK2+L2-2KL-K2+L2+2KL4K= ab

 

=> - 4KL/4K = a/b

 

=> L = - a/b

 

=> bL = -a

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

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Q:

Select the option that depicts the correct mirror image for the given word.

 

STRONG

 

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

Explanation:
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Filed Under: Image Analysis
Exam Prep: Bank Exams

41 116965
Q:

The average of runs of a cricket player of 10 innings was 32. How many runs must he make in his next innings so as to increase his average of runs by 4 ?

A) 76 B) 79
C) 85 D) 87
 
Answer & Explanation Answer: A) 76

Explanation:

Average = total runs / no.of innings = 32 

So, total = Average x no.of innings = 32 x 10 = 320.

 

Now increase in avg = 4runs. So, new avg = 32+4 = 36runs 

Total runs = new avg x new no. of innings = 36 x 11 = 396 

Runs made in the 11th inning = 396 - 320 = 76

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Filed Under: Average

426 116858
Q:

What is the simplified value of 5 + 45 - 4 + 5 - 45 + 4 ?

 

A) 9 B) 10
C) 18 D) 20 
 
Answer & Explanation Answer: C) 18

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

Select the related word/letters/numbers from the given alternatives:

Dark:Light :: Noise:?

A) Music B) Quiet
C) Melody D) Vacuum
 
Answer & Explanation Answer: B) Quiet

Explanation:
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Filed Under: Analogy
Exam Prep: Bank Exams

2 115838
Q:

Complete the missing number in the given series.

5,  20,  76,  (—),  448

A) 185 B) 225
C) 415 D) 232
 
Answer & Explanation Answer: B) 225

Explanation:

The series follows the following pattern

5 X 5 – 5 = 20

20 X 4 – 4 = 76

76 X 3 – 3 = 225

225 X 2 – 2 = 448

Hence, the term 225 denoted by (d) completes the series

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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

9 115822
Q:

A father said his son , " I was as old as you are at present at the time of your birth. " If the father age is 38 now, the son age 5 years back was :

A) 14 B) 19
C) 33 D) 38
 
Answer & Explanation Answer: A) 14

Explanation:

Let the son's present age be x years .Then, (38 - x) = x => x= 19. 

 

Son's age 5 years back = (19 - 5) = 14 years

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Filed Under: Problems on Ages

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Q:

It was Sunday on Jan 1, 2006. What was the day of the week Jan 1, 2010?

A) Monday B) Friday
C) Sunday D) Tuesday
 
Answer & Explanation Answer: B) Friday

Explanation:

On 31st December, 2005 it was Saturday. 

Number of odd days from 2006 to 2009 = (1 + 1 + 2 + 1) = 5 days. 

 

On 31st December 2009, it was Thursday.

Thus, on 1st Jan, 2010 it is Friday

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Filed Under: Calendar

713 115634