Aptitude and Reasoning Questions

Q:

Some persons can do a piece of work in 12 days. Two times the number of such persons will do half of that work in

A) 6 days B) 12 days
C) 4 days D) 3 days
 
Answer & Explanation Answer: D) 3 days

Explanation:

Let x men can do the in 12 days and the required number of days be z

 

More men, Less days     [Indirect Proportion]

 

Less work, Less days     [Direct Proportion  ]

 men2x:xwork1:12 :: 12 : z

2x×1×z=x×12×12

 z=3

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Filed Under: Chain Rule

28 24842
Q:

In a certain code language, '297' means 'tie clip button'. Which number means 'button' ? 

I. In that language '926' means 'clip your tie'. 

II. In that language '175' means 'hole and button'. 

A) If the data in statement I alone are sufficient to answer the question B) If the data in statement II alone are sufficient answer the question
C) If the data either in I or II alone are sufficient to answer the question; D) If the data even in both the statements together are not sufficient to answer the question
 
Answer & Explanation Answer: C) If the data either in I or II alone are sufficient to answer the question;

Explanation:

Comparing the information in the question with statement 1. we find that '2' and '9' are the codes for 'tie' and 'dip'. So, '7' represents 'button'.

Thus, I alone iS sufficient.

Again, comparing the information in the question with II, WO find that the common code number '7' stands for the common word 'button'.

Thus, II alone also is sufficient. 

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Filed Under: Data Sufficiency

9 24833
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.

72 24 6
96 16 12
108 ? 18

A) 12 B) 16
C) 18 D) 20
 
Answer & Explanation Answer: A) 12

Explanation:

 

In the first row, 72 ÷ (24/2) = 72 ÷ 12 = 6.
In the second row, 96 ÷ (16/2) = 96 ÷ 8 = 12.
Let the missing number in the third row be y.
Then, 108 ÷ (y/2) = 18  or  y/2 = 108/18 = 6  or  y = 12.

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400 24812
Q:

Which number will complete the series?

14, 27, 52, 101, 198, ?

A) 381 B) 395
C) 391 D) 394
 
Answer & Explanation Answer: C) 391

Explanation:
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0 24793
Q:

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

RIGT : WDBY :: FUSH : ?

A) PKJQ B) BYWD
C) DXWB D) QKJR
 
Answer & Explanation Answer: B) BYWD

Explanation:
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Filed Under: Analogy
Exam Prep: Bank Exams

0 24780
Q:

What is the measure of an interior angle of a regular polygon of 8 sides?

 

A) 140 B) 144
C) 135 D) 150
 
Answer & Explanation Answer: C) 135

Explanation:
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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

1 24770
Q:

A group of workers was put on a job. From the second day onwards, one worker was withdrawn each day. The job was finished when the last worker was withdrawn. Had no worker been withdrawn at any stage, the group would have finished the job in 55% of the time. How many workers were there in the group?

A) 50 B) 40
C) 45 D) 10
 
Answer & Explanation Answer: D) 10

Explanation:

Let the number of workers be x.

Now, Using work equivalence method,

X + (X-1) + (X-2)+ . . . . + 1 = X *55% of X

 

=> [X * (X+1)] / 2 = X * (55X/100)    [because, Series is in AP. Sum of AP = {No. of terms (first term+ last term)/2} ]

Therefore, X = 10 

 

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Filed Under: Time and Work

63 24767
Q:

On what dates of July.2004 did Monday fall?

A) 6th,10th,21st,30th B) 12th,7th,19th,28th
C) 5th,10th,24th,17th D) 5th, 12th, 19th, 26th
 
Answer & Explanation Answer: D) 5th, 12th, 19th, 26th

Explanation:

Let us find the day on 1st July, 2004.

2000 years have 0 odd day. 3 ordinary years have 3 odd days.

Jan. Feb. March April May June July

31 + 29 + 31 + 30 + 31 + 30 + 1

= 183 days = (26 weeks + 1 day) = 1 t .

Total number of odd days = (0 + 3 + 1) odd days = 4 odd days. '

:. 1st July 2004 was 'Thursday',-,-

Thus, 1st Monday in July 2004 _as on 5th July.

Hence, during July 2004, Monday fell on 5th, 12th, 19th and 26th. .

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Filed Under: Calendar

118 24754