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Q:

Priya’s age was cube of an integral number (different from 1) four years ago and square of an integral number after four years. How long should she wait so that her age becomes square of a number in the previous year and cube of a number in the next year?

A) 7 years	B) 12 years
C) 14 years	D) 21 years

Answer & Explanation Answer: C) 14 years

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

Q:

How many pairs (A, B) are possible in the number 479865AB if the number is divisible by 9 and it is given that the last digit of the number is odd?

A) 5	B) 6
C) 9	D) 11

Answer & Explanation Answer: A) 5

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Filed Under: Numbers
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Q:

Which one of the following is an irrational number?

A) √59059	B) 231/593
C) 0.454545....	D) 0.121122111222

Answer & Explanation Answer: D) 0.121122111222

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Filed Under: Numbers
Exam Prep: Bank Exams

Q:

For any two real numbers a and b.

$\sqrt{{(a - b)}^{2}} + \sqrt{{(b - a)}^{2}}$ is

A) always zero	B) never zero
C) positive only if a ≠ b	D) positive if an only if a > b

Answer & Explanation Answer: C) positive only if a ≠ b

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

Q:

In a class of 100 students, the average weight is 30 kg. If the average weight of the girls is 24 kg and that of the boys is 32 kg, then what is the number of girls in the class?

A) 25	B) 26
C) 27	D) 28

Answer & Explanation Answer: A) 25

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Filed Under: Average
Exam Prep: Bank Exams

Q:

Consider the following statements in respect of two integers p and q (both > 1) which are relatively prime:

1) Both p and q may be prime numbers.

2) Both p and q may be composite numbers

3) one of p and q may be prime and the other composite.

Which of the above statements are correct?

A) 1 and 2 only	B) 2 and 3 only
C) 1 and 3 only	D) 1, 2 and 3

Answer & Explanation Answer: D) 1, 2 and 3

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Filed Under: Numbers
Exam Prep: Bank Exams

Q:

x, y and z are three numbers such that x is 30% of z and y is 40% of z. If x is p% of y, then what is the value of p?

A) 45	B) 55
C) 65	D) 75

Answer & Explanation Answer: D) 75

Explanation:

x = 30% of z = 30z/100 = 3z/10

y = 40% of z = 40z/100 = 4z/10

According to the question,(x/y)*100 = p%

p% = 3z/100/4z/100×100= 75%

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Filed Under: Percentage
Exam Prep: Bank Exams

Q:

Suppose n is a positive integer such that $(n^{2} + 48)$ is a perfect square. What is the number of such n?

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

Answer & Explanation Answer: C) 3

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

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