Quantitative Aptitude - Arithmetic Ability Questions

Q:

If sin - 4π/3 = x, then the value of x is

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

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Q:

What will be the roots of the quadratic equation x2 - 25x + 156 = 0?

A) 12, 13 B) 25, 1
C) 9, 16 D) 31, 6
 
Answer & Explanation Answer: A) 12, 13

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Q:

If tanA + tanB = X, then the value of X is

A) (tanA - tanB)/(1 + tanAtanB) B) (tanA + tanB)/(1 - tanAtanB)
C) (tanA + tanB)/(1 + tanAtanB) D) (tanA - tanB)/(1 - tanAtanB)
 
Answer & Explanation Answer: B) (tanA + tanB)/(1 - tanAtanB)

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Q:

In triangle ABC, AB = 8 cm, angle A is bisected internally to intersect BC at D. BD = 6 cm and DC = 7.5 cm. What is the length of CA?

A) 12 cm B) 10 cm
C) 12.5 cm D) 10.5 cm
 
Answer & Explanation Answer: B) 10 cm

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Q:

Cost of 4 pens, 6 note books and 9 files is Rs 305. Cost of 3 pens, 4 notebooks and 2 files is Rs 145. What is the cost (in Rs) of 5 pens, 8 notebooks and 16 files?

A) 415 B) 465
C) 440 D) Cannot be determined
 
Answer & Explanation Answer: B) 465

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Q:

What is the equation of the line whose y­-intercept is 4 and making an angle of 45° with the positive x-­axis?

A) x + y = -­4 B) x -­ y = 4
C) x + y = 4 D) x -­ y = ­-4
 
Answer & Explanation Answer: D) x -­ y = ­-4

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Q:

What is the slope of the line 2x - 5y = 12?

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

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Q:

Select the odd number from the given alternatives.

A) 43 B) 22
C) 13 D) 41
 
Answer & Explanation Answer: B) 22

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