Aptitude and Reasoning Questions

Q:

The average of 7 numbers is 30. If the average of first three numbers is 25 and that of last three numbers is 35, then what is the fourth number?

A) 30 B) 35
C) 37.5 D) 40
 
Answer & Explanation Answer: A) 30

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Filed Under: Average
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Q:

The lengths of the two diagonals of a rhombus are 8 cm and 15 cm respectively. Find its area (in cm²).

A) 30 B) 120
C) 90 D) 60
 
Answer & Explanation Answer: D) 60

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Filed Under: Area
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Q:

3cosA is equal to

A) 4cos3A + 3cosA B) 4cos3A - 3cosA
C) 3cos3A + 3cosA D) 3cos3A - 3cosA
 
Answer & Explanation Answer: B) 4cos3A - 3cosA

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Filed Under: Simplification
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Q:

If a sum of money doubles itself in 8 yrs, then the interest rate in percentage is ?

A) 8 1⁄2% B) 10%
C) 10 1⁄2 % D) 12 1⁄2 %
 
Answer & Explanation Answer: D) 12 1⁄2 %

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Filed Under: Simple Interest
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Q:

The line segment AB intersects the straight line CD at B; AB will be smallest when ∠ ABD (in degrees) is

A) 30 B) 60
C) 90 D) 45
 
Answer & Explanation Answer: C) 90

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Filed Under: Volume and Surface Area
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Q:

If a mirror is placed on the line MN, then which of the answer figures is the right image of the given figure?

 

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

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Filed Under: Image Analysis
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Q:

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

30, 62, 189, 760, ?

A) 3306 B) 1157
C) 2185 D) 3805
 
Answer & Explanation Answer: D) 3805

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Filed Under: Number Series
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Q:

Find the volume (in cm3) of a cube of side 7.5 cm.

A) 421.875 B) 77.145
C) 39.245 D) 24.435
 
Answer & Explanation Answer: A) 421.875

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

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