Quantitative Aptitude - Arithmetic Ability Questions

Q:

In 250 litres mixture of soda and water the ratio of amount of soda to that of water is 7 : 18. In order to make this ratio 2 : 3, how many more litres of soda should be added?

A) 37.5 B) 42.5
C) 45 D) 50
 
Answer & Explanation Answer: D) 50

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Filed Under: Alligation or Mixture
Exam Prep: Bank Exams

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Q:

What is the simplified value of [2/(cot A – tan A)]?

A) sin A cos A B) tan 2A
C) sin2 A D) cos2 A
 
Answer & Explanation Answer: B) tan 2A

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

A man spends 59% of his income and saves the rest. What percentage of his expenditure does he save?

A) 72.57 percent B) 83.19 percent
C) 89.09 percent D) 69.49 percent
 
Answer & Explanation Answer: D) 69.49 percent

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

If 2cosec2A = x, then the value of x is

A) 1/(1 - cosecA) - 1/(1 + cosecA) B) 1/(1 + sinA) + 1/(1 - tanA)
C) 1/(1 + cosA) + 1/(1 - cosA) D) 1/(1 - tanA) - 1/(1 + sinA)
 
Answer & Explanation Answer: C) 1/(1 + cosA) + 1/(1 - cosA)

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

To cover a distance of 252 km in 2.5 hours what should be the average speed of the car in meters/second?

A) 100.8 m/s B) 50.4 m/s
C) 28 m/s D) 56 m/s
 
Answer & Explanation Answer: C) 28 m/s

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Filed Under: Time and Distance
Exam Prep: Bank Exams

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Q:

If 8/5 of 4/3 of a number is 192, then 5/6 of that number is

A) 75 B) 192
C) 180 D) 65
 
Answer & Explanation Answer: A) 75

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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

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Q:

If x + (1/x) = 2, then what is the value of x64 + x121?

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

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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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