Quantitative Aptitude - Arithmetic Ability Questions

Q:

The average revenues of 13 consecutive years of a company is Rs 82 lakhs. If the average of first 7 years is Rs 77 lakhs and that of last 7 years is Rs 89 lakhs, find the revenue for the 7th year.

A) Rs 98 lakhs B) Rs 96 lakhs
C) Rs 94 lakhs D) Rs 92 lakhs
 
Answer & Explanation Answer: B) Rs 96 lakhs

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Filed Under: Average
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Q:

Thousand solid metallic spheres of diameter 6 cm are melted and recast into a new solid sphere. The diameter of the new sphere (in cm) is

A) 30 B) 90
C) 45 D) 60
 
Answer & Explanation Answer: D) 60

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Filed Under: Volume and Surface Area
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Q:

What is the value of sec 5π/4?

A) 1/√3 B) -√2
C) √3 D) 1
 
Answer & Explanation Answer: B) -√2

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Filed Under: Simplification
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Q:

When [x + (1/x)] = 5, then what is the value of [x – (1/x)]?

A) 11 B) ± √22
C) 21 D) ± √21
 
Answer & Explanation Answer: D) ± √21

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Q:

Rs. 10000 is being compounded at 20% per annum. Calculate the amount after 2 years if the rate of interest is charged half yearly.

A) 14600 B) 12500
C) 14642 D) 14641
 
Answer & Explanation Answer: D) 14641

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Filed Under: Compound Interest
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Q:

38% of 250 is equal to

A) 95 B) 114
C) 76 D) 104.5
 
Answer & Explanation Answer: A) 95

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

Δ ABC is right angled at B. If m∠A = 60°, then what is the value of 2 Sec C x 1/2 Sin A?

A) 1/2 B) 1/3
C) 1 D) 1/√2
 
Answer & Explanation Answer: C) 1

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Q:

If tanA = x, then x is

A) √(cosec2A + 1) B) √(sec2A + 1)
C) √(cosec2A - 1) D) √(sec2A - 1)
 
Answer & Explanation Answer: D) √(sec2A - 1)

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