Quantitative Aptitude - Arithmetic Ability Questions

Q:

If u : v = v : w, then what is the value of u4 : v4?

A) u2 : wv B) u2 : w2
C) u2 v : w3 D) u : w
 
Answer & Explanation Answer: B) u2 : w2

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Filed Under: Simplification
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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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Q:

What approximate value should come in place of the question mark (?) in the following equation (Note: You are not expected to calculate the exact value)?(55.01+16.0003)×22.01÷10.998 =?

A) 190 B) 130
C) 110 D) 142
 
Answer & Explanation Answer: D) 142

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Q:

In the given figure, PQRS is a square and SRT is an equilateral triangle. What is the value (in degrees) of angle SOR?

A) 45 B) 55
C) 60 D) 75
 
Answer & Explanation Answer: D) 75

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Filed Under: Volume and Surface Area
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Q:

In ΔPQR, S and T are points on side PQ and PR respectively. ST is parallel to QR. If lengths of PS, SQ and PR are 6 cm, 9 cm and 12.5 cm respectively, what is the length of TR?

A) 7.5 cm B) 5 cm
C) 10 cm D) 2.5 cm
 
Answer & Explanation Answer: A) 7.5 cm

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Filed Under: Volume and Surface Area
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Q:

The total surface area of a hemisphere is 4158 cm2. Find its diameter (in cm).

A) 21 B) 84
C) 42 D) 63
 
Answer & Explanation Answer: B) 84

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Q:

If the time increases by 7 years, then simple interest increases by Rs 8400 on a sum of Rs 6000. What is the rate (in percentage) of interest per annum?

A) 18 B) 12
C) 20 D) 24
 
Answer & Explanation Answer: C) 20

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Q:

By selling an item for Rs. 696 Unnati incurred a loss of 13%. By how much should she have raised the price to gain a profit of 10%?

A) Rs. 160.08 B) Rs. 104
C) Rs. 84 D) Rs. 184
 
Answer & Explanation Answer: D) Rs. 184

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Filed Under: Profit and Loss
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