Quantitative Aptitude - Arithmetic Ability Questions

Q:

If 1/6 of x - 7/2 of 3/7 equals - 7/4, then the value of x is

A) -1.5 B) 3
C) -2.5 D) 6
 
Answer & Explanation Answer: A) -1.5

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Q:

p3 + q3 + r3  3pqr = 4. If a = q + r, b = r + p and c = p + q, then what is the value of a3 + b3 + c3  3abc?

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

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Q:

If x - y = -8 and xy = 45, then (x2 + y2) is

A) 154 B) 64
C) 90 D) 26
 
Answer & Explanation Answer: A) 154

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Q:

If (7x -­ 13) ­ (12x + 3) = 14, then the value of x is ______ .

A) -6 B) 6
C) -2/5 D) 2/5
 
Answer & Explanation Answer: A) -6

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Q:

If (sinA + CosA)/(sin A - cos A) = 5/4, the value of (tan2A + 1)/(tan2A - 1) = ?

A) 41/40 B) 12/13
C) 40/41 D) -31/49
 
Answer & Explanation Answer: D) -31/49

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Q:

3cosA is equal to

A) 4cos3A + 3cosA B) 4cos3A - 3cosA
C) 3cos3A + 3cosA D) 3cos3A - 3cosA
 
Answer & Explanation Answer: B) 4cos3A - 3cosA

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Q:

What is the value of Cot 60 - Sec 30?

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

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Q:

Find the LCM of 12, 16, 20 and 24.

A) 180 B) 220
C) 240 D) 260
 
Answer & Explanation Answer: C) 240

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