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Number System

Number System
What is the difference between the largest number and the least number written with the figures 3, 4, 7, 0, 3?

43983
43883
70983
43893

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

74330 Largest30347 Smallest-------------43983

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?

Nothing can be said.
4
6
1

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(10x + y) – (10y + x) = 54x – y = 6

Number System
A certain number when divided by 39 leaves a remainder 20, what is the remainder when the same number is divided by 13?

11
7
0
5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

39 + 20 = 59/13 = 7 (Remainder)

Number System
The digit in unit's place of a three digit number is thrice the digit in ten's place & the digit in hundred's place is two-third of the digit in ten's place. If the sum of three digits of number is 14

211
239
215
221

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the ten's digit be x.∴ Unit's digit = 3xHundered's digit = 2x/3∴ x + 3x + 2x/3 = 14= 3x + 9x + 2x = 14 x 3= 14x = 14 x 3= x = 3∴ Number = 239

Number System
384×12×2=?

7487
8465
6123
9216

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

9216

Number System
What should be the least number to be added to the 51234 number to make it divisible by 9?

6
5
3
4

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

The least number to be added to the numbers to make them divisible by 9 is equal to the difference of the least multiple of 9 greater than the sum of the digits and sum of the digits.Sum of digits = 15.Nearest multiple of 9 greater than sum of digits = 18.Hence 3 has to be added.

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