Practice Questions on Number System
Aptitude Questions and Answers

Easy Number System Question - 6

Q6.

How many five digit multiples of 11 are there, if the five digits are 3, 4, 5, 6 and 7?

Repetition of digits is now allowed?

A.

10

B.

11

C.

12

D.

13

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Easy Number System Question - 7

Q7.

What is the remainder when $7^{187}$ is divided by $800$?

A.

143

B.

243

C.

343

D.

443

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Easy Number System Question - 8

Q8.

What is the value of $M$ and $N$ respectively if $M39048458N$ is divisible by 8 and 11, where $M$ and $N$ are single digit integers?

A.

7, 8

B.

8, 6

C.

6, 4

D.

5, 4

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Easy Number System Question - 9

Q9.

IBM-Daksh observes that it gets a call at an interval of very 10 minutes from Seattle, at every 12 minutes from Arizonia, at the interval of 20 minutes from New York and after every 25 minutes it gets the call from Newark.

If in the early morning at 5:00 a.m. it has received the calls simultaneously from all the four destinations, then at which time it will receive the calls at a time from all places on the same day?

A.

10:00 am

B.

3:00 am

C.

5:00 am

D.

Both (A) and (B)

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Easy Number System Question - 10

Q10.

If  $n$  is a positive integer, which one of the following numbers must have a remainder of 3 when divided by any of the numbers 4, 5 and 6?

A.

$12n + 3$

B.

$24n + 3$

C.

$90n + 2$

D.

$120n + 3$

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