Quantitative Aptitude - Arithmetic Ability Questions

Q:

If xy = 48 and x2 + y2 = 100, then (x + y) is

A) 12 B) 16
C) 18 D) 14
 
Answer & Explanation Answer: D) 14

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Filed Under: Simplification
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Q:

A can do a piece of work in 10 days and B in 12 days. With help of C, they finish the work in 4 days. In how many days C alone can do the same work?

A) 12 B) 15
C) 18 D) 24
 
Answer & Explanation Answer: B) 15

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

Find the LCM of 3.2, 2.72, 1.28 and 1.44

A) 24.48 B) 2448
C) 2.448 D) 244.8
 
Answer & Explanation Answer: A) 24.48

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Filed Under: HCF and LCM
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Q:

If (x + y + z) = 12, xy + yz + zx = 44 and xyz = 48, then what is the value of x3 + y3+ z3?

A) 104 B) 144
C) 196 D) 288
 
Answer & Explanation Answer: D) 288

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Q:

The area of the largest sphere ( in cm2) that can be drawn inside a square of side 18 cm is

A) 972Π B) 11664Π
C) 36Π D) 288Π
 
Answer & Explanation Answer: A) 972Π

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Filed Under: Area
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Q:

If the ratio of the cost price and the selling price of an article be 4:5, then the percentage of profit is:

A) 27.5 B) 25
C) 15 D) 10
 
Answer & Explanation Answer: B) 25

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Filed Under: Profit and Loss
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Q:

A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?

A) 75 days B) 37.5 days
C) 17.5 days D) 35 days
 
Answer & Explanation Answer: B) 37.5 days

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Filed Under: Time and Work
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Q:

A sum of money is invested at 20% compound interest (compounded annually). It would fetch Rs. 723 more if interest is compounded half-yearly. The sum

A) Rs.15,000 B) Rs.30,000
C) Rs.20,000 D) Rs.7,500
 
Answer & Explanation Answer: B) Rs.30,000

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Filed Under: Compound Interest
Exam Prep: Bank Exams

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