6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

What is the value of [sin (90 – A) + cos (180 – 2A)]/[cos (90 – 2A) + sin (180 – A)]?

A) sin (A/2) cos A	B) cot (A/2)
C) tan (A/2)	D) sin A cos (A/2)

Answer & Explanation Answer: C) tan (A/2)

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Filed Under: Simplification
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Q:

If the age of Rahul is 5 years more than his friend Ajay's age and the age of Rahul's wife is 6 years less than Rahul, and Ajay's wife is 1 year older than Rahul's wife, then which of the following statements is true?

A) Rahul's age and Ajay's wife's age is same.	B) Ajay's wife's age and Ajay's age is same.
C) Rahul and Ajay are of the same age.	D) Rahul and Ajay's age difference is 3 years.

Answer & Explanation Answer: B) Ajay's wife's age and Ajay's age is same.

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Filed Under: Problems on Ages
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Q:

If (1 - cosA)/2 = x, then the value of x is

A) cos^2(A/2)	B) √sin(A/2)
C) √cos(A/2)	D) sin^2(A/2)

Answer & Explanation Answer: D) sin^2(A/2)

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Filed Under: Quantitative Aptitude - Arithmetic Ability
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Q:

What is the measure of an interior angle of a regular Octagon?

A) 135°	B) 120°
C) 140°	D) 144°

Answer & Explanation Answer: A) 135°

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Filed Under: Quantitative Aptitude - Arithmetic Ability
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Q:

A missile travels at 1278 km/h. How many metres does it travel in one second?

A) 355 metres	B) 358 metres
C) 345 metres	D) 313 metres

Answer & Explanation Answer: A) 355 metres

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Filed Under: Area
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Q:

A scored 72% in a paper with a maximum marks of 900 and 80% in another paper with a maximum marks of 700. If the result is based on the combined percentage of two papers, the combined percentage is

A) 75.5%	B) 76%
C) 76.5%	D) 77%

Answer & Explanation Answer: A) 75.5%

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Filed Under: Percentage
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Q:

An article was sold for Rs. 2,400 at a discount of 20%. Find the selling price, if the discount was 25%.

A) Rs. 2250	B) Rs. 2000
C) Rs. 1800	D) Rs. 2150

Answer & Explanation Answer: A) Rs. 2250

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Filed Under: Percentage
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Q:

If x = 1 + √2 + √3, then the value of $x^{2} - 2 x - 4 = 0$

A) √6	B) 2√3
C) 3√2	D) 2√6

Quantitative Aptitude - Arithmetic Ability Questions

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