Quantitative Aptitude - Arithmetic Ability Questions

Q:

Simplify: (213 x 213 + 187 x 187)

A) 80338 B) 80438
C) 60338 D) 60438
 
Answer & Explanation Answer: A) 80338

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Q:

What will be the net discount (in %) of two successive discounts of 15% and 35%?

A) 44.75 B) 51.25
C) 55.25 D) 56.25
 
Answer & Explanation Answer: A) 44.75

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

cot2A + cos2A is equal to

A) (cosecA -­ sinA)2(cosecA + sinA) B) (cosecA + sinA)(cosecA -­ sinA)
C) (secA + sinA)(secA -­ sinA) D) (secA -­ sinA)2(secA + sinA)
 
Answer & Explanation Answer: B) (cosecA + sinA)(cosecA -­ sinA)

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Q:

A person crosses a 900 metres wide road in 120 seconds. What is his speed (in km/hr)?

A) 24 B) 21
C) 36 D) 27
 
Answer & Explanation Answer: B) 21

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Filed Under: Time and Distance
Exam Prep: Bank Exams , CAT

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Q:

The sum of the ages of father and a son presently is 70 years. After 10 years, the son's age is exactly half that of the father. What are their ages now?

A) 45 years, 25 years B) 50 years, 20 years
C) 47 years, 23 years D) 50 years, 25 years
 
Answer & Explanation Answer: B) 50 years, 20 years

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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Q:

A can do a work in 21 days and B in 42 days. If they work on it together for 7 days, then what fraction of work is left?

A) 1/3 B) 1/4
C) 2/3 D) 1/2
 
Answer & Explanation Answer: D) 1/2

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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

If xy = -30 and x2 + y2 = 61, then find the value of (x + y).

A) 2 B) 3
C) 1 D) 4
 
Answer & Explanation Answer: C) 1

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Q:

The point of intersection of all the three medians of a triangle is called its

A) orthocentre B) incentre
C) centroid D) circumcentre
 
Answer & Explanation Answer: C) centroid

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Filed Under: Area
Exam Prep: Bank Exams

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