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Quantitative Aptitude - Arithmetic Ability

Quantitative Aptitude - Arithmetic Ability Questions

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Point P is the midpoint of segment AB. Co-ordinates of P are (5,-4) and A are (7,0). What will be the co-ordinates of point B?

A) (3, -8)	B) (-3, -8)
C) (3, 8)	D) (-3, 8)

A) (3, -8)

B) (-3, -8)

C) (3, 8)

D) (-3, 8)

Answer & Explanation Answer: A) (3, -8)

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What is the value of $\sin 75 ° + \sin 15 °$ ?

A) √3	B) 2√3
C) √(3/2)	D) 3/√2

A) √3

B) 2√3

C) √(3/2)

D) 3/√2

Answer & Explanation Answer: C) √(3/2)

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0 1718

If $C + \frac{1}{C} = \sqrt{3}$ , then what is the value of $C^{3} + \frac{1}{C^{3}} = ?$

A) 0	B) 3√3
C) 1/√3	D) 6√3

A) 0

B) 3√3

C) 1/√3

D) 6√3

Answer & Explanation Answer: A) 0

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0 1717

If $x = {at}^{2}$ and y = 2at then

A) x2 = 4ay	B) y2 = 4ax
C) x2 + y 2 = a2	D) x 2 - y2 = a 2

A) x2 = 4ay

B) y2 = 4ax

C) x2 + y 2 = a2

D) x 2 - y2 = a 2

Answer & Explanation Answer: B) y2 = 4ax

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1 1717

If p = 99, then the value of $p (p^{2} + 3 p + 3)$ will be

A) 999999	B) 1000000
C) 1000001	D) 999998

A) 999999

B) 1000000

C) 1000001

D) 999998

Answer & Explanation Answer: A) 999999

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0 1717

If a + b = 8 and ab = 15, then what is the value of $a^{3} + b^{3} ?$

A) 98	B) 152
C) 124	D) 260

A) 98

B) 152

C) 124

D) 260

Answer & Explanation Answer: B) 152

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0 1716

Square of (7 - 4x) is

A) 16x2 - 28x + 49	B) 49 - 28x - 16x2
C) 49 - 56x - 16x2	D) 16x2 - 56x + 49

A) 16x2 - 28x + 49

B) 49 - 28x - 16x2

C) 49 - 56x - 16x2

D) 16x2 - 56x + 49

Answer & Explanation Answer: D) 16x2 - 56x + 49

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If α + β = 90° and α:β = 2:1, then the ratio of cosα to cosβ is

A) 1:√3	B) 1:3
C) 1:√2	D) 1:2

A) 1:√3

B) 1:3

C) 1:√2

D) 1:2

Answer & Explanation Answer: A) 1:√3

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