Quantitative Aptitude - Arithmetic Ability Questions

Q:

What will be the net discount percentage of three successive discounts of 20%, 10% and 30%?

A) 45.2 B) 49.6
C) 54.6 D) 50.4
 
Answer & Explanation Answer: B) 49.6

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

Find the odd word/letters/number from the given alternatives.

A) Teacher B) Lawyer
C) Doctor D) Manager
 
Answer & Explanation Answer: D) Manager

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Filed Under: Odd Man Out
Exam Prep: Bank Exams

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Q:

What is the value of 1xp-q+1+1xq-p+1?

A) 0 B) 1
C) x D) cant determine
 
Answer & Explanation Answer: B) 1

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

If the selling price is doubled, the profit triples. The profit percent is

A) 66.6% B) 150%
C) 100% D) 190%
 
Answer & Explanation Answer: C) 100%

Explanation:

Let CP be x and SP be y.

3(y –x) = (2y –x)y = 2x

Profit = y –x = 2x –x = x

Profit% = x/x X 100 = 100%

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Filed Under: Profit and Loss

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Q:

In a mixture, ink and water are in the ratio of 8 : 5. If 24 litres of water is added to the mixture, then the new ratio becomes 8 : 11. What is the total quantity (in litres) of water in the new mixture?

A) 40 B) 42
C) 44 D) 48
 
Answer & Explanation Answer: C) 44

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

X and Y undertook to do a piece of work for Rs 5400. X alone could do this work in 18 days and Y alone could do this work in 24 days. With the assistance of Z they finished the work in 8 days. What is the share (in Rs) of Z?

 

A) 1200 B) 1500
C) 1600 D) 1800
 
Answer & Explanation Answer: A) 1200

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

The sum of length, breadth and height of a cuboid is 22 cm and the length of its diagonal is 14 cm.
What is the surface area of the cuboid?

A) 288 sq.cm B) 216 sq.cm
C) 144 sq.cm D) Cannot be determined due to insufficient data
 
Answer & Explanation Answer: A) 288 sq.cm

Explanation:
Let lengths, breadth and height of cuboid be l, b and h respectively
According to question
l+b+h = 22cm......(i)
and
√(l^2+b^2+h^2) = 14cm .....(ii)
Surface area of cuboid = 2(lb+bh+lh)
Squaring eq (i) gives
l2+b2+h2+ 2(lb+bh+lh) = 484
Substituting l^2+b^2+h^2 from eq (i)
2(lb+bh+lh) = 484 -196 = 288 sq.cm
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Filed Under: Volume and Surface Area
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Q:

If a-b=1 and a3-b3 = 61, then the value of ab will be

A) -20 B) 20
C) 30 D) 60
 
Answer & Explanation Answer: B) 20

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Filed Under: Simplification
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