Practice Questions on Number System
Aptitude Questions and Answers

Moderate Number System Question - 31

Q31.

For what value of '$n$' will the remainder of $351^n$ and $352^n$ be the same when divided by 7?

A.

2

B.

3

C.

6

D.

4

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Moderate Number System Question - 32

Q32.

pqr is a three digit natural number so that $pqr = p!+q!+r!$.

What is the value of $(q+r)^p$?

A.

1296

B.

3125

C.

19683

D.

9

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Moderate Number System Question - 33

Q33.

$a, b, c, d$ and $e$ are five consecutive numbers in increasing order of size. Deleting one of the five numbers from the set decreased the sum of the remaining numbers in the set by 20%.

Which one of the following numbers was deleted?

A.

a

B.

b

C.

c

D.

d

E.

e

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Moderate Number System Question - 34

Q34.

A chain smoker had spent all the money he had. He had no money to buy his cigarettes. Hence, he resorted to join the stubs and to smoke them.

He needed 4 stubs to make a single cigarette. If he got a pack of 10 cigarettes as a gift, then how many cigarettes could he smoke in all?

A.

10

B.

11

C.

12

D.

13

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Moderate Number System Question - 35

Q35.

2ab5 is a four-digit number divisible by 25. If the number formed from the two digits ab is a multiple of 13, then $ab =$

A.

10

B.

25

C.

52

D.

65

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