Quantitative Aptitude - Arithmetic Ability Questions

Q:

The value of  (0.3)2/100=?

A) 0.09 B) 0.0009
C) 0.009 D) 0.9
 
Answer & Explanation Answer: B) 0.0009

Explanation:
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Q:

If 3 tan θ = cot θ where 0 < θ < π/2, then what is the value of θ ?

A) π/6 B) π/4
C) π/2 D) 1
 
Answer & Explanation Answer: A) π/6

Explanation:
3tan θ = cot θ 
3tan θ = 1/tan θ
tan2θ = 1/3
tan θ = 1/√3
θ = π/6
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Q:

If tan(A/2) = x, then the value of x is

A) sinA/(1 - cosA) B) sinA/(1 + cosA)
C) √[sinA/(1 + cosA)] D) √[sinA/(1 - cosA)]
 
Answer & Explanation Answer: B) sinA/(1 + cosA)

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Q:

A discount series of 15%, 20% and 25% is equal to the single discount of?

A) 48% B) 49%
C) 50% D) 51%
 
Answer & Explanation Answer: B) 49%

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Filed Under: Percentage
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Q:

A book is sold at three successive discounts of 20%, 20% and 10%. What is the net discount (in percentage)?

A) 42.4 B) 48.6
C) 44.2 D) 40.4
 
Answer & Explanation Answer: A) 42.4

Explanation:
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Exam Prep: Bank Exams

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Q:

If (x + y)2 = xy + 1 and x3  y3 = 1, then what is the value of x – y?

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

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Q:

If a : b is 32 : 35 and b : c is 21 : 32, then a : c is?

A) 5 : 3 B) 3 : 5
C) 1 : 1 D) 5 : 7
 
Answer & Explanation Answer: B) 3 : 5

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Exam Prep: AIEEE , Bank Exams , CAT

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Q:

An angle is smaller than its supplementary angle by 50°. What is the measure of the angle?

A) 115° B) 60°
C) 30° D) 65°
 
Answer & Explanation Answer: D) 65°

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Filed Under: Area
Exam Prep: Bank Exams

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