Quantitative Aptitude - Arithmetic Ability Questions

Q:

A sum fetched a total simple interest of Rs. 8100 at the rate of 6% per year in 9 years. What is the sum?

A) Rs 15000 B) Rs 18000
C) Rs 12000 D) Rs 9000
 
Answer & Explanation Answer: A) Rs 15000

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Filed Under: Simple Interest
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Q:

Coefficient of x2 in (x + 9)(6 - 4x)(4x - 7) is

A) 216 B) -4
C) -92 D) 108
 
Answer & Explanation Answer: C) -92

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Filed Under: Simplification
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Q:

If θ is acute angle and tan θ – cot θ = 0, then what is the value of tan26θ + cot100θ?

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

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Filed Under: Simplification
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Q:

If 3x - 8(2 - x) = -19, then the value of x is

A) -3/11 B) -33/11
C) -3/5 D) -33/5
 
Answer & Explanation Answer: A) -3/11

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Q:

A person while buying a dress on sale spends Rs. 45 and saves Rs. 5, what is the percentage of his savings?

A) 5% B) 10%
C) 15% D) 20%
 
Answer & Explanation Answer: B) 10%

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Filed Under: Percentage
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Q:

In ΔDEF measure of angle E is 90°. If cosD = 8/17, and DE = 16cm, then what is the length (in cm) of side DF?

 

A) 30 B) 20
C) 26 D) 34
 
Answer & Explanation Answer: D) 34

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Filed Under: Area
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Q:

If 123 x 356 = 43788, then 1.23 x 0.356 = ?

A) 437.88 B) 4.3788
C) 0.43788 D) 0.043788
 
Answer & Explanation Answer: C) 0.43788

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Q:

If two marbles are picked at random, what is the probability that either both are red or both are green?

A) 5/7 B) 5/14
C) 1/7 D) 1/14
 
Answer & Explanation Answer: C) 1/7

Explanation:

Required probability = (10+3)91=1391=17

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