Aptitude and Reasoning Questions

Q:

If the standard deviation of a population is 3, what would be the population variance?

 

A) 9 B) 6
C) 8 D) 15
 
Answer & Explanation Answer: A) 9

Explanation:
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Filed Under: Probability
Exam Prep: Bank Exams

10 24116
Q:

Pointing to a photograph, a woman says, "This man's son's sister is my mother-in-law." How is the woman's husband related to the man in the photograph ? 

A) Grandson B) Son
C) Son-in-law D) Nephew
 
Answer & Explanation Answer: A) Grandson

Explanation:

Man's son's sister — Man's daughter. So, the man's daughter is the mother of the woman's husband 

Thus, the woman's husband is the grandson of the man in the photograph. 

 

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Filed Under: Blood Relations

62 24087
Q:

What value should come in place of the question mark (?) in the following question?

?2% of 650 = 202 + 42

A) 8 B) 64
C) 8 D) 642
 
Answer & Explanation Answer: A) 8

Explanation:

?2=400+16650x100?= 8

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Q:

The ratio of investments of two partners is 11:12 and the ratio of their profits is 2 : 3. If A invested the money for 8 months , find for how much time B invested his money.

Answer

Suppose A invested Rs.11 for 8 months and B invested Rs. 12 for x months.


\inline \therefore Ratio of investments of A and B


                  = (11 x 8) : (12 x x)


                  = 88 : 12x 


\inline \therefore \inline \frac{88}{12x}=\frac{2}{3}\Rightarrow x=11

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Subject: Partnership

26 24080
Q:

In what ratio should water and wine be mixed so that after selling the mixture at the cost price a profit of 33.33% is made?

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

Explanation:

33.33% profit means there is one part water and 3 part is pure wine. so the required ratio of water and wine in the mixture is 1:3

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Filed Under: Profit and Loss

64 24072
Q:

Which of the following terms follows the trend of the given list?

AAAAAaA, AAAAaAA, AAAaAAA, AAaAAAA, AaAAAAA, _______________.

A) aAAAAAA B) AAAAAAa
C) AAAAAaA D) AAAAaAA
 
Answer & Explanation Answer: A) aAAAAAA

Explanation:
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Filed Under: Alphabet Test
Exam Prep: Bank Exams

1 24060
Q:

Four ladies A, B, C and D and four gentlemen E, F, G and H are sitting in a circle round a table facing each other.

Directions:

(1) No two ladies or two gentlemen are sitting side by side.

(2) C, who is sitting between G and E is facing D.

(3) F is between D and A and is facing G.

(4) H is to the right of B.

Question:

1. Who are immediate neighbours of B?

2. E is facing whom?

A) G & H , H B) F & H , B
C) E & F , F D) E & H , G
 
Answer & Explanation Answer: A) G & H , H

Explanation:

From the directions given : 

f11482726547.png image

From the fig. it is clear that 

1) neighbours of B are G , H.

2) E is facing H.

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Filed Under: Permutations and Combinations
Exam Prep: CAT
Job Role: Bank PO

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Q:

The difference between the simple interest received from two different sources on Rs.1500 for 3 years is Rs.13.50. The difference between their rates of interest is

A) 0.1% B) 0.2%
C) 0.3% D) 0.4%
 
Answer & Explanation Answer: C) 0.3%

Explanation:

(1500 x R1 x 3)/100 

=> 4500 (R1-R2) = 1350 

=> (R1-R2)= 1350/4500 = 0.3 %

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Filed Under: Simple Interest
Exam Prep: GRE

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