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Number System

Number System
What is the value of 8/11 of 5/7 of 96% of 28875 ?

13800
15400
12900
14400

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Number = 8 x 5 x 96 x 28875/11 x 7 x 100              = 14400

Number System
If the difference between a number and two-fifths of that number is 45 what is the number ?

76
75
77
78

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x ∴ x - 2x/5 = 45∴ x = 75

Number System
On converting the following base-2 numeral in base ten, 1101101, we get

107
108
109
106

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

109

Number System
Which is the smallest fractions among the following ?

27/31
15/19
11/13
13/15

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

11/13 = 0.8461,13/15 = 0.8666,27/31 = 0.87,15/19 = 0.789

Number System
The difference between 68% of a number and 35% of the same number is 1216. What is 28% of the number ?

1031.75
1027.75
1043.75
1037.75

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the no. be xTherefore 68x / 100 - 35x / 100 = 1216      Therefore x = 1216 x 100 / 33Therefore 28% of x = 28x / 100 = 1216 x 100 / 33 x 28 / 100= 1216 x 100 x 28 / 33 x 1/100 = 1031.75

Number System
What least number must be subtracted from 2641 so that the remainder left, when divided by 10,15 and 25, is 7 in each case ?

84
94
81
87

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

LCM of 10, 15, 25 = 150When we drive 2641 by 150 the remainder is 91.But the remainder should be 7.So, the number to be subtracted from 2641 is 91 - 7 = 84.

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