Quantitative Aptitude - Arithmetic Ability Questions

Q:

The third proportional of two numbers 12 and 48 is

A) 84 B) 96
C) 192 D) 144
 
Answer & Explanation Answer: C) 192

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Filed Under: Ratios and Proportions
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Q:

If 2cosAsinB = x, then the value of x is?

A) sin(A+B) + sin(A­-B) B) cos(A+B) + cos(A­-B)
C) sin(A+B) ­- sin(A-­B) D) cos(A­-B) -­ cos(A+B)
 
Answer & Explanation Answer: C) sin(A+B) ­- sin(A-­B)

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Filed Under: Simplification
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Q:

In the following question, select the odd word from the given alternatives.

A) 2132 – 161 B) 2678 – 672
C) 4325 – 120 D) 6931 – 162
 
Answer & Explanation Answer: A) 2132 – 161

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Filed Under: Odd Man Out
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Q:

What is the difference (in Rs) between the compound interests on Rs. 4000 for 1 year at 12% per annum compounded yearly and half-yearly?

A) 14.4 B) 12.4
C) 10.4 D) 16.4
 
Answer & Explanation Answer: A) 14.4

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Filed Under: Compound Interest
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Q:

After allowing a discount of 20% on Marked price Kishore makes a profit of 12%. What percentage is the Marked price above the Cost price?

A) 40% B) 32%
C) 25% D) 8%
 
Answer & Explanation Answer: A) 40%

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Filed Under: Percentage
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Q:

What is the simplified value of (cosec A – sin A)(sec A – cos A)(tan A + cot A)?

A) -1 B) 0
C) 1 D) 2
 
Answer & Explanation Answer: C) 1

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Q:

If a + b = 1 and ab = -6, then what is the value of a3+ b3?

A) 17 B) 15
C) 19 D) 13
 
Answer & Explanation Answer: C) 19

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Q:

What is the reflection of the point (3,-5) in the origin?

A) (-3, -5) B) (5,-3)
C) (-5,-3) D) (-3, 5)
 
Answer & Explanation Answer: D) (-3, 5)

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