Aptitude and Reasoning Questions

Q:

Choose the correct alternative that will continue the same pattern and replace 'x' in series 6,18,42,78,x

A) 84 B) 126
C) 96 D) 108
 
Answer & Explanation Answer: B) 126

Explanation:

The pattern is +12,+24,+36,+48, . . . .
So,missing term=78+48=126

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Filed Under: Number Series

2 5467
Q:

Find out the wrong term in the series 4,8,15,25,36,54

A) 28 B) 38
C) 30 D) 48
 
Answer & Explanation Answer: B) 38

Explanation:

The correct pattern is +4,+7,+10,+13,+16
So, 36 is wrong term and it must be replaced by 25+13=38

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Filed Under: Number Series

5 5466
Q:

10 women can do a piece of work in 6 days, 6 men can do same work in 5 days and 8 children can do it in 10 days. What is the ratio of the efficiency of a woman, a man and a child respectively?

A) 4 : 6 : 3 B) 4 : 5 : 3
C) 2 : 4 : 3 D) 4 : 8 : 3
 
Answer & Explanation Answer: D) 4 : 8 : 3

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

4 5463
Q:

The missing number in the series 9 81 ? 6561 59049

A) 729 B) 3561
C) 4213 D) None of the above
 
Answer & Explanation Answer: A) 729

Explanation:

The given series is 9 81 ? 6561 59049

It follows a pattern that

 

9

81 = 9 x 9

729 = 9 x 9 x 9

6561 = 9 x 9 x 9 x 9

59049 = 9 x 9 x 9 x 9 x 9

 

Hence, the missing number in the series is 729.

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Filed Under: Number Series
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

3 5460
Q:

A can do a piece of work in 15 days and B can do it in 16 days and C can do it 24 days. They started the work together and A leaves after 3 days and B leaves after 4 days from the beginning. How long will work lost ?

A) 10 2/3 days B) 13 1/5 days
C) 12 2/3 days D) 11 5/7 days
 
Answer & Explanation Answer: B) 13 1/5 days

Explanation:

3/15 + 4/16 + x/24 = 1

x=1315

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Filed Under: Time and Work
Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk

3 5460
Q:

In the following question, a matrix of certain characters is given.These characters follow a certain trend, row-wise or column wise.Find out this trend and choose the missing character accordingly

11 6 8
17 12 ?
25 34 19
19 28 11

A) 16 B) 15
C) 13 D) 9
 
Answer & Explanation Answer: A) 16

Explanation:

 

In the first column, 17 - 11 = 25 - 19 = 6.
In the second column, 12 - 6 = 34 - 28 = 6.
Let the missing number in the third column be y.
Then, y - 8 = 19 - 11 = 8 or y = 16.

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167 5459
Q:

1422 ÷ 1260.25 = ?

A) 586 B) 578
C) 568 D) 566
 
Answer & Explanation Answer: C) 568

Explanation:

142 x 142 x 11260.25

 

=> 142 x 142 x 135.5  = 568

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

4 5458
Q:

What is the true discount on a bill of Rs.2916 due in 3 years hence at 8% C.I.?

A) Rs.600 B) Rs.601
C) Rs.602 D) Rs.603
 
Answer & Explanation Answer: C) Rs.602

Explanation:

PW = Amount1+R100T 

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Filed Under: True Discount
Exam Prep: Bank Exams
Job Role: Bank PO

27 5457