119+ Numbers Questions and Answers | Quantitative Aptitude

Q:

By which least number should 5000 be divided so that it becomes a perfect square?

A) 2	B) 5
C) 10	D) 15

Answer & Explanation Answer: A) 2

Explanation:

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Q:

The 2nd and 6th term of an arithmetic progression are 8 and 20 respectively. What is the 20th term?

A) 56	B) 65
C) 62	D) 69

Answer & Explanation Answer: C) 62

Explanation:

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Q:

What is the reflection of the point (6, -3) in the line y = 2?

A) (-2 , -3)	B) (6 , 7)
C) (-6 , 7)	D) (-2 , 3)

Answer & Explanation Answer: B) (6 , 7)

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Q:

Product of three consecutive odd numbers is 1287. What is the largest of the three numbers?

A) 9	B) 11
C) 13	D) 17

Answer & Explanation Answer: C) 13

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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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Q:

Given that the polynomial $(x^{2} + ax + b)$ leaves that same remainder when by (x –1) or (x + 1) What are the values of a and b respectively?

A) 4 and 0	B) 0 and 3
C) 3 and 0	D) 0 and any interger

Answer & Explanation Answer: D) 0 and any interger

Explanation:

Since x^2+ ax + b when divided by x-1 or x+1 leaves the same remainder

So on putting x=1 and x=-1 we get the same value

1+a+b = 1-a+b

2a=0

a=0

here b can take any value as it will always get cancelled out

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Q:

What least number must be subtracted from 518, so that the sum is completely divisible by 13?

A) 11	B) 10
C) 9	D) 12

Answer & Explanation Answer: A) 11

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Q:

What should be the missing digit so that the number 275_476 becomes exactly divisible by 11?

A) 6	B) 4
C) 2	D) 3

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