6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is the value of sin 330°?

A) 2	B) 2/√3
C) √2	D) -1/2

Answer & Explanation Answer: D) -1/2

Explanation:

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Filed Under: Simplification
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Q:

Find the odd word/letters/number from the given alternatives.

A) BDGK	B) JLOS
C) NPSW	D) MORU

Answer & Explanation Answer: D) MORU

Explanation:

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Filed Under: Odd Man Out
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Q:

Given that the polynomial $(x^{2} + ax + b)$ leaves that same remainder when by (x –1) or (x + 1) What are the values of a and b respectively?

A) 4 and 0	B) 0 and 3
C) 3 and 0	D) 0 and any interger

Answer & Explanation Answer: D) 0 and any interger

Explanation:

Since x^2+ ax + b when divided by x-1 or x+1 leaves the same remainder

So on putting x=1 and x=-1 we get the same value

1+a+b = 1-a+b

2a=0

a=0

here b can take any value as it will always get cancelled out

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Filed Under: Numbers
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Q:

If 2x - 2(3 + 4x) < -1 - 2x > -5/3 - x/3; then x can take which of the following values?

A) 1	B) 2
C) -2	D) -1

Answer & Explanation Answer: D) -1

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Q:

If cosA/(1 - sinA) = x, then the value of x is

A) secA - tanA	B) cosecA + tanA
C) secA + tanA	D) cosecA - tanA

Answer & Explanation Answer: C) secA + tanA

Explanation:

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Q:

$If {(x - \frac{1}{3})}^{2} + {(y - 4)}^{2} = 0, then the value of \frac{y + x}{y - x} ?$

A) 11/13	B) 13/11
C) 16/9	D) 9/16

Answer & Explanation Answer: B) 13/11

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability

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Q:

Two circles touch externally. The sum of their areas is $130 π$ sq.cm and the distance between their centers is 14 cm. The radius of the bigger circle is

A) 22 cm	B) 11 cm
C) 33 cm	D) 44 cm

Answer & Explanation Answer: B) 11 cm

Explanation:

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Filed Under: Volume and Surface Area
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Q:

The sum of present age of father and his son is 60 yrs. Six years ago, father's age was five times the age of the son. After 6 years, son's age will be?

A) 45	B) 25
C) 20	D) 33

Quantitative Aptitude - Arithmetic Ability Questions

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