Aptitude and Reasoning Questions

Q:

PQR is an equilateral triangle whose side is 10 cm. What is the value (in cm) of the inradius of triangle PQR?

A) 5/√3 B) 10√3
C) 10/√3 D) 5√2
 
Answer & Explanation Answer: A) 5/√3

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Q:

In a college union, there are 48 students. The ratio of the number of boys to the number of girls is 5:3. The number of girls to be added in the union, so that the number of boys to girls in 6:5 is

A) 6 B) 7
C) 12 D) 17
 
Answer & Explanation Answer: B) 7

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Filed Under: Ratios and Proportions
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Q:

In each questions given below three statements are followed by two conclusions numbered I and II. You have to take the three given statements to be true
even if they seem to be at variance with the commonly known facts. Read the conclusions and decide which conclusion logically follows from the three given statement disregarding commonly known facts. Give answer

Statements:
Some books are papers.
No paper is magazine.
All magazines are pens.
Conclusions:
I. Some books are not magazines.
II. Some books are magazines.

A) Only conclusion I follows. B) Only conclusion II follows.
C) Either conclusion I or II follows. D) Neither conclusion I nor II follows.
 
Answer & Explanation Answer: A) Only conclusion I follows.

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Q:

If (X/4) = (Y/5) = (Z/9), then what is X : Y : Z?

A) 8 : 10 : 19 B) 4 : 5 : 9
C) 45 : 36 : 20 D) 15 : 12 : 7
 
Answer & Explanation Answer: B) 4 : 5 : 9

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Filed Under: Ratios and Proportions
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Q:

What is the value of 53% of 7400?

A) 4312 B) 3478
C) 3922 D) 4124
 
Answer & Explanation Answer: C) 3922

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Filed Under: Percentage
Exam Prep: Bank Exams , CAT

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Q:

If the roots of the equation a(b  c)x2 + b(c  a)x + c(a  b) = 0 are equal, then which of the following is true?

A) b = ( a + c)/ ac B) 2/ b = (1/ a) + (1/ c)
C) 2 b = (1/ a) + (1/ c) D) abc = ab + bc + ca
 
Answer & Explanation Answer: B) 2/ b = (1/ a) + (1/ c)

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Q:

The diagonal of a square is 12 cm what is the length (in cm) of its side?

A) 6√2 B) 12√2
C) 6 D) 9
 
Answer & Explanation Answer: A) 6√2

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Filed Under: Area
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Q:

The average of 15 numbers is 7. If the average of the first 8 numbers is 6.5 and the average of the last 8 numbers is 8.5 then middle number is

A) 10 B) 23
C) 13 D) 15
 
Answer & Explanation Answer: D) 15

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Filed Under: Average
Exam Prep: Bank Exams

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