6500+ Quantitative Aptitude Questions and Answers With Explanation

Q:

The price of an article is cut by 42%, to restore to its original value, the new price must he increased by ______.

A) 42 percent	B) 72.41 percent
C) 29.58 percent	D) 52.5 percent

Answer & Explanation Answer: B) 72.41 percent

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Filed Under: Percentage
Exam Prep: Bank Exams

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Q:

If one root of the equation ${Ax}^{2} + Bx + C = 0$ is two and a half times the others, then which of the following is TRUE?

A) 7B2 = 3 CA	B) 7B2 = 4 CA
C) 7B2 = 36 CA	D) 10B2 = 49 CA

Answer & Explanation Answer: D) 10B2 = 49 CA

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Filed Under: Simplification
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Q:

If $2 r = h + \sqrt{r^{2} + h^{2}}$ , then the ratio of r:h is

A) 1 : 2	B) 2 : 3
C) 4 : 3	D) 3 : 5

Answer & Explanation Answer: C) 4 : 3

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

If the speed of a boat in still water is 20 km/hr and the speed of the current is 5 km/hr, then the time taken by the boat to travel 100 km with the current is

A) 2 hrs	B) 3 hrs
C) 4 hrs	D) 7 hrs

Answer & Explanation Answer: C) 4 hrs

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Filed Under: Boats and Streams
Exam Prep: Bank Exams

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Q:

When a number is increased by 18, it becomes 106% of itself. What is the number?

A) 300	B) 216
C) 270	D) 162

Answer & Explanation Answer: A) 300

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Filed Under: Percentage
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Q:

If A is equal to 20% of B and B is equal to 25% of C; then what percent of C is equal to A?

A) 10	B) 15
C) 5	D) 20

Answer & Explanation Answer: C) 5

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Filed Under: Percentage
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Q:

Which of the following statements is not true?

A) The difference of two prime numbers, both greater than 2, is divisible by 2	B) For two different integers m, n and a prime number p, if p divides the product m × n, then p divides either m or n.
C) If a number is of the form 6n –1 (n being a natural number), then its is a prime number.	D) There is only one set of three prime numbers such that there is a gap of 2 between two adjacent prime numbers.

Answer & Explanation Answer: D) There is only one set of three prime numbers such that there is a gap of 2 between two adjacent prime numbers.

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Filed Under: Numbers
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Q:

The area of an equilateral triangle is 9√3 sq cm, find its perimeter?

A) 18 cm	B) 9 cm
C) 9√3 cm	D) 6√3 cm

Quantitative Aptitude - Arithmetic Ability Questions

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