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Number System

Number System
2/11 of 3/7 of 8/13 of 12012 = ?

449
576
241
321

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 2 x 3 x 8 x 12012/11 x 7 x 13 = 576

Number System
If three eighth of a number is 141. What will be the approximately value of 32.08% of this number?

90
60
120
160

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x * 3/8 = 141 => x= 376376 * 32.08/100 = 120

Number System
93296 - 45874 + 20382 - 56817 = ?

109857
109877
109867
109887

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 113678 - 102691 = 109887

Number System
If the product of two successive positive integers is 4692, what is the smaller number ?

70
68
64
66

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

∵ 68 x 69 = 4692

Number System
The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is?

3
7
5
11

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7

Number System
Two numbers are in the ratio 3:5. If 9 be subtracted from each, they are in the ratio of 9:17. The first number is:

30
18
27
36

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(3x-9):(5x-9) = 9:17 x = 12 => 3x = 36

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