Quantitative Aptitude - Arithmetic Ability Questions

Q:

The sides of a triangle are in the ratio 1/2 : 1/3 : 1/4 and its perimeter is 104 cm. The length of the longest side (in cm) is

A) 52 B) 48
C) 32 D) 26
 
Answer & Explanation Answer: B) 48

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Filed Under: Area
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Q:

Two numbers are 30% and 37% lesser than a third number. By how much percent is the second number to be enhanced to make it equal to the first number?

A) 10 percent B) 7 percent
C) 11.11 percent D) 18.92 percent
 
Answer & Explanation Answer: C) 11.11 percent

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Filed Under: Percentage
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Q:

If ab+ba = -1, then the value of a2b-b2a is

A) 1 B) -1
C) 0 D) 2
 
Answer & Explanation Answer: C) 0

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Filed Under: Simplification
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Q:

What is the simplified value of cosec Acot A + tan A2 ?

A) 2cos 2A B) 1 – sin2 A
C) sec2A D) secA tanA
 
Answer & Explanation Answer: B) 1 – sin2 A

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Q:

The height of an equilateral triangle is 18 cm. Its area is

A) 36√3 sq. m. B) 108√3 sq. cm.
C) 108 sq. cm. D) 96√3 sq. m.
 
Answer & Explanation Answer: B) 108√3 sq. cm.

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Q:

X can complete a task in 8 days, whereas Y can complete the same task in 10 days. If they work together, in how many days will the task be completed?

A) 40/9 B) 9/40
C) 44/9 D) 9/44
 
Answer & Explanation Answer: A) 40/9

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Filed Under: Time and Work
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Q:

In the given figure, PQRS is a square and SRT is an equilateral triangle. What is the value (in degrees) of angle SOR?

A) 45 B) 55
C) 60 D) 75
 
Answer & Explanation Answer: D) 75

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Filed Under: Volume and Surface Area
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Q:

The 5th and 9th term of an arithmetic progression are 7 and 13 respectively. What is the 15th term?

A) 22 B) 21
C) 55 D) 59
 
Answer & Explanation Answer: A) 22

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