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Number System

Number System
If R2 = S3 = K, where R, S and K are integers. Find the smallest positive integral value of K. (Greater than 1)

54
64
88
75

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

64

Number System
Let R = qs—4. When s=8, R=16. When s=10, R is equal to

23
21
20
22

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

21

Number System
The difference between the two digit number and the number obtained by interchanging its digits is 54. The difference between the digits is?

4
1
Nothing can be said.
6

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(10x + y) – (10y + x) = 54x – y = 6

Number System
Supply the missing figure : 1, 4, 9, 16, 25 .... 49

23
36
16
42

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

36

Number System
On dividing 2272 as well as 875 by 3-digit number N, we get the same remainder. The sum of the digits of N is:

13
10
12
11

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Clearly, (2272 - 875) = 1397, is exactly divisible by N.Now. 1397 = 11 * 127The required 3-digit number is 127, the sum of whose digit is 10.

Number System
What should come in place of question mark (?) in the following number series ? 7, 176, 480, 1058, 2188, 4426, ?

8882
8888
8881
8884

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Series is (No. + 9²) x 2, (+8²) x 2, (+7²) x 2, (+6²) x 2.......

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