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Number System

Number System
What is the difference between the largest and the smallest number written with 7, 7, 0, 7?

6893
6093
6993
693

ANSWER DOWNLOAD EXAMIANS APP

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?

1
Nothing can be said.
6
4

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(10x + y) – (10y + x) = 54x – y = 6

Number System
Look at this series: 1000, 200, 40, ... What number should come next?

8
2
14
24

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

This is a simple division series. Each number is divided by 5. Rule = (1st number / 5 = 2nd number) (2nd number / 5 = 3rd number)....Now, (1000 / 5 = 200), (200 / 5 = 40), (40 / 5 = 8)...So answer is a = 8.

Number System
Which number should replace question mark (?) in the following equation ? ?/342 = 38/?

112
116
118
114

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(?)² = 342 x 38Therefore, ? = √342 x 38 = √38 x 9 x 38 = 38 x 3 = 114

Number System
What is 432 times 119 ?

53408
50408
51408
52408

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

No. 432 x 119 = 51408

Number System
How many figures are required to number the pages the pages of a book containing 365 pages?

897
967
977
987

ANSWER DOWNLOAD EXAMIANS APP
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