119+ Numbers Questions and Answers | Quantitative Aptitude

Q:

If 49 is subtracted from the square of a number, then the result obtained is 576. What is the number?

A) 24	B) 25
C) 23	D) 27

Answer & Explanation Answer: B) 25

Explanation:

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Q:

The sum of two numbers is equal to thrice their difference. If the smaller of the numbers is 10 find the other number.

A) 15	B) 30
C) 40	D) None of these

Answer & Explanation Answer: D) None of these

Explanation:

Let larger number be x and smaller number be y.

Also, y = 10

According to question,

⇒(x + y) = 3((x –y)⇒(x + 10) = 3(x –10)

⇒2x = 40⇒x = 20

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Q:

Find a two digit number which is exactly three times the product of its digits?

A) 24	B) 12
C) 48	D) 36

Answer & Explanation Answer: A) 24

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Q:

What is the sum of the first 11 terms of an arithmetic progression if the first term is -31 and last term is 29?

A) 42	B) -11
C) 28	D) 12

Answer & Explanation Answer: B) -11

Explanation:

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Q:

What is the sum of the first 17 terms of an arithmetic progression if the first term is -20 and last term is 28?

A) 68	B) 156
C) 142	D) 242

Answer & Explanation Answer: A) 68

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Q:

Which value among $\sqrt[3]{5}, \sqrt[4]{6}, \sqrt[6]{12}, \sqrt[12]{276}$ is the largest?

A) 53	B) 64
C) 27612	D) 126

Answer & Explanation Answer: C) 27612

Explanation:

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Q:

The sum of a non-zero number and twenty times its reciprocal is 9. What is the number?

A) -5	B) 3
C) -3	D) 5

Answer & Explanation Answer: D) 5

Explanation:

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Q:

How many numbers less than 200 are multiples of both 5 and 6?

A) 21	B) 7
C) 9	D) 6

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