Quantitative Aptitude - Arithmetic Ability Questions

Q:

What is the sum of the first 11 terms of an arithmetic progression if the 4th term is 11 and the 7th term is -4?

A) -75 B) 55
C) 11 D) 100
 
Answer & Explanation Answer: C) 11

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Q:

Two pipes P and Q can fill an empty tank in 25 hours and 20 hours respectively. Pipe R alone can empty the completely filled tank in 50 hours. Firstly both the pipes P and Q are opened and after 8 hours pipe R is also opened. What will be the total time (in hours) taken to completely fill the tank?

 

A) 12 B) 10
C) 14 D) 13
 
Answer & Explanation Answer: A) 12

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Filed Under: Pipes and Cistern
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Q:

A shop keeper cheats to the extent of 10% while buying and selling fruits, by using tampered weights. His total gain, in %, is:

A) 21 B) 24
C) 22 D) 23
 
Answer & Explanation Answer: A) 21

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Q:

If n + n2 + n4 + n8 = 45, then find the value of 'n' which will satisfy the equation.

 

 

A) 16 B) 24
C) 36 D) 48
 
Answer & Explanation Answer: B) 24

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Q:

A number is greater than twice its reciprocal by 31/4. Find the number.

A) 7 B) 8
C) 9 D) 6
 
Answer & Explanation Answer: A) 7

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Q:

The perimeter and the breadth of a rectangle are 68 cm and 10 cm respectively. Calculate the length of its diagonal (in cm).

 

A) 52 B) 25
C) 26 D) 50
 
Answer & Explanation Answer: C) 26

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Filed Under: Area
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Q:

The slope of the line passing through the points (2,-1) and (x,5) is -1. Find x?

A) 4 B) -4
C) 8 D) -8
 
Answer & Explanation Answer: B) -4

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Q:

In ΔABC measure of angle B is 90°. If cosecA = 13/12, and AB = 10cm, then what is the length (in cm) of side AC?

A) 24 B) 12
C) 14 D) 26
 
Answer & Explanation Answer: D) 26

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