6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

If [7(5x/3 - 3/2)]/2 + 3/2 = 1/4, then what is the value of x?

A) 35/24	B) 24/35
C) -24/35	D) -35/24

Answer & Explanation Answer: B) 24/35

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1863

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

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Filed Under: Percentage
Exam Prep: Bank Exams

2 1863

Q:

If P = 7 + 4√3 and PQ = 1, then what is the value of $1 / P^{2} + 1 / Q^{2}$ ?

A) 196	B) 194
C) 206	D) 182

Answer & Explanation Answer: B) 194

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Filed Under: Simplification
Exam Prep: Bank Exams

0 1862

Q:

The average age of 80 boys in a class is 15 years. The average age of a group of 15 boys in the class is 16 years and the average age of another 25 boys in the class is 14 years. What is the average age of the remaining boys in the class?

A) 15.25 years	B) 14 years
C) 14.75 years	D) Cannot be determined

Answer & Explanation Answer: A) 15.25 years

Explanation:

Total sum of age of 80 students of the class = 15 X 80 = 1200 years
15 students → 15 X 16 = 240 years
25 students → 25 X 14 = 350 years
Sum of 40 students = 590 years
Total age of remaining 40 students = 1200 – 590 = 610
So, average age = 15.25 years

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Filed Under: Average
Exam Prep: Bank Exams

0 1862

Q:

Reflection of the point (2,-4) in the origin is

A) (2,4)	B) (-2,-4)
C) (2,-4)	D) (-2,4)

Answer & Explanation Answer: D) (-2,4)

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

2 1861

Q:

P bought an article for Rs. 1600 and sold it at a profit of 10%. What would have been the increase in the profit percent if it was sold for Rs. 1840?

A) 5%	B) 10%
C) 12%	D) 15%

Answer & Explanation Answer: A) 5%

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Filed Under: Profit and Loss
Exam Prep: Bank Exams

4 1861

Q:

Sum of twice a fraction and 3 times its reciprocal is 29/3. What is the fraction?

A) 2/9	B) 5/4
C) 4/5	D) 9/2

Answer & Explanation Answer: D) 9/2

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Filed Under: Decimal Fractions
Exam Prep: Bank Exams

4 1861

Q:

A train is moving at the speed of 72km/hr. How many seconds will it take to cover a distance of 1400 m ?

A) 70	B) 80
C) 72	D) 84

Quantitative Aptitude - Arithmetic Ability Questions

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