Aptitude and Reasoning Questions

Q:

The average of 9 results is 50. The average of first four results is 52 and average of last four results is 49 . what is the fifth result?

Answer

Total of results = 50 x 9 = 450


Total of first four results = 52 x 4 = 208


Total of Last four results = 49 x 4 = 196


Hence the fifth result = 450 - (208 + 196) = 46

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Subject: Average

22 11671
Q:

How many 3 letters words can be formed using the letters of the words hexagon?

A) 120 B) 210
C) 160 D) 200
 
Answer & Explanation Answer: B) 210

Explanation:

Since the word hexagon contains 7 different letters,the number of permutations is 7P3 = 7 x 6 x 5 =210

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4 11664
Q:

When I went back to my hometown three years ago, I found that a lot of changes ______.

A) were taken place B) are taken place
C) had taken place D) have taken place
 
Answer & Explanation Answer: C) had taken place

Explanation:

Since he is telling about the thing that had happened in past.

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Filed Under: Analogy
Exam Prep: AIEEE , GRE , TOEFL

11 11659
Q:

If the last four letters of the word 'CONCENTRATION' are written in reverse order followed by next two in the reverse order and next three in the reverse order and then followed by the first four in the reverse order, counting from the end, which letter would be eighth in the new arrangement ?

A) E B) N
C) R D) T
 
Answer & Explanation Answer: C) R

Explanation:

The new letter sequence is NOITARTNECNOC.

The eighth letter from the end is R.

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Filed Under: Alphabet Test

38 11659
Q:

From a total of six men and four ladies a committee of three is to be formed. If Mrs. X is not willing to join the committee in which Mr. Y is a member, whereas Mr.Y is willing to join the committee only if Mrs Z is included, how many such committee are possible?

A) 91 B) 104
C) 109 D) 98
 
Answer & Explanation Answer: A) 91

Explanation:

We first count the number of committee in which

(i). Mr. Y is a member
(ii). the ones in which he is not

Case (i): As Mr. Y agrees to be in committee only where Mrs. Z is a member.
Now we are left with (6-1) men and (4-2) ladies (Mrs. X is not willing to join).

We can choose 1 more in5+2C1=7 ways.

Case (ii): If Mr. Y is not a member then we left with (6+4-1) people.
we can select 3 from 9 in 9C3=84 ways.

Thus, total number of ways is 7+84= 91 ways.

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10 11650
Q:

Identify the diagram that best represents the relationship among the given classes.

 

Electrons, Nucleus, Neutrons

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

Explanation:
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Filed Under: Logical Venn Diagram
Exam Prep: Bank Exams

0 11632
Q:

Find the cost of 96 shares of Rs. 10 each at 34 discount, brokerage being 1/4 per share.

A) 912 B) 921
C) 920 D) 900
 
Answer & Explanation Answer: A) 912

Explanation:

Cost of 1 share  =Rs.10-34+14=Rs192  

 

Cost of 96 shares  = Rs.192*96 = Rs. 912.

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Filed Under: Stocks and Shares

7 11626
Q:

Identify the diagram that best represents the relationship among the given classes.

Primary colors, Red, Blue, Magenta

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

Explanation:
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Filed Under: Logical Venn Diagram
Exam Prep: Bank Exams

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