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Number System

Number System
106 * 106 - 94 * 94 = ?

2000
2400
1904
1906

ANSWER DOWNLOAD EXAMIANS APP

Number System
If 2^(2x-1) = 8^(3-x), then the value of x is:

2
6
9
5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

2

Number System
Which one of the following is the sum of the numbers 1, 3, 5, 7, 9…. up to nth number?

N(N + 1)
N2 + 1
N2
N(N + 1)/2

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Number System
Find out the smallest possible number which will be divisible by 1122 as well as 153.

3366
2366
1366
4366

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

3366

Number System
The difference between a two-digit number and the number obtained by interchange the two digits of the number is 27. If the sum of the two digits of the number is 13, what is their product ?

39
40
37
38

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be 10x + y.∴ 10x + y - (10y + x) = 27or 9x - 9y = 27∴ x - y = 3 .......(I)x + y = 13 .......(II)From eqn (I) and (II)x = 8 and y = 5.So the number = 85Therefore, product = 8 x 5 = 40

Number System
74698 + 365 + 85213 + 95 = ?

160361
160351
160341
160371

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 74698 + 365 + 85213 + 95 = 160371

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