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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
43893
70983

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

Number System
In how many different ways can the letters of the word CORPORATION be arranged ?

3326400
None of these
1326400
2326400

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

CORPORATION = 11 letters 'O' comes thrice,'R' twice.∴ total no. of ways = 111/3121 = 3326400

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:

10
11
13
12

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

24
14
2
8

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
If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ?

95
103
92
99

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801  Therefore, x = 99

Number System
93296 - 45874 + 20382 - 56817 = ?

109887
109857
109867
109877

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 113678 - 102691 = 109887

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