Quantitative Aptitude - Arithmetic Ability Questions

Q:

The reciprocal of the sum of the reciprocals of 8/7 and 5/6 is:

A) 83/40 B) 42/83
C) 83/42 D) 40/83
 
Answer & Explanation Answer: D) 40/83

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Q:

If x3  4x2 + 19 = 6(x  1), then what is the value of [x2 + (1/x  4)]?

A) 3 B) 5
C) 6 D) 8
 
Answer & Explanation Answer: C) 6

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Q:

Find the area (in cm2) of a semi-circle of radius 28 cm.

A) 2464 B) 832
C) 1232 D) 1664
 
Answer & Explanation Answer: C) 1232

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Q:

A line passing through the origin perpendicularly cuts the line 2x + 3y = 6 at point M. Find M?

A) (6/11, 9/11) B) (6/7, 9/7)
C) (6/11, -9/11) D) (-6/7, 9/7)
 
Answer & Explanation Answer: A) (6/11, 9/11)

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Q:

The costs of daily ticket of local train is Rs. 50 and Monthly Pass costs is Rs. 1125. If I buy the Monthly Pass and travel for 30 days in a month then I save?

A) 10 percent B) 25 percent
C) 14 percent D) 15 percent
 
Answer & Explanation Answer: B) 25 percent

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Q:

Calculate the angle subtended by the chord at the point on the major arc if the radius and the chord of the circle are equal in length.

A) 30° B) 120°
C) 200° D) 300°
 
Answer & Explanation Answer: A) 30°

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Q:

The value of ds+t÷ds÷dt

A) 0 B) d
C) 1 D) ds+t
 
Answer & Explanation Answer: C) 1

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Q:

What is the value of tan3A?

A) (3tanA -­ tan3A)/(1 -­ 3tan2A) B) (3tanA + tan3A)/(1 + 3tan2A)
C) (3tanA -­ tan3A)/(1 + 3tan2A) D) (3tanA + tan3A)/(1-­ 3tan2A)
 
Answer & Explanation Answer: A) (3tanA -­ tan3A)/(1 -­ 3tan2A)

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