Quantitative Aptitude - Arithmetic Ability Questions

Q:

Which of the following quadratic equations has real roots?

A) 4x2 - 7x + 5 = 0 B) 5x2 - 11x + 7 = 0
C) 5x2 - 11x + 8 = 0 D) 2x2 - 7x + 5 = 0
 
Answer & Explanation Answer: D) 2x2 - 7x + 5 = 0

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Q:

If Sumita earns 75/4% more than her boyfriend, find the approximate % her boyfriend earns less than Sunita.

A) 16% B) 14%
C) 25% D) 11%
 
Answer & Explanation Answer: A) 16%

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Filed Under: Percentage
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Q:

Find the HCF & LCM of 16, 24.

A) 8, 48 B) 4, 12
C) 2, 24 D) 4, 48
 
Answer & Explanation Answer: A) 8, 48

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Q:

 In the following question, select the odd letter/letters from the given alternatives.

A) IJLO B) EFHI
C) KLNQ D) GHJM
 
Answer & Explanation Answer: B) EFHI

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Q:

What is the value of tan 6° tan 36° tan 84° tan 54° tan 45°?

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

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Q:

If secA/√(sec2A ­- 1) = x, then value of x is

A) tanA B) cosecA
C) sinA D) cosA
 
Answer & Explanation Answer: B) cosecA

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Q:

If (tanA ­- tanB)/(1 + tanAtanB) = x, then the value of x is

A) tan(A -­ B) B) tan(A + B)
C) cot(A ­- B) D) cot(A + B)
 
Answer & Explanation Answer: A) tan(A -­ B)

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Q:

The value of cos (1110°) is

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

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