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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?

43893
43983
70983
43883

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

Number System
666 / 6 / 3 = ?

37
111
84
333

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

666 * 1/6 * 1/3 = 37

Number System
The difference between 8% of a number and 3% of the same number is 39. What is 2.8% of that number ?

27.84
21.84
24.84
25.84

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.∴ x(8 - 3)% = 39x = 3900/5 = 780∴ 2.8% of 780= 780 x 2.8/100 = 21.84

Number System
What is the value of ? in the following equations ? 72/? = ?/50

80
100
40
60

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60

Number System
Find the number, when 15 is subtracted from 7 times the number, the result is 10 more than twice of the number

5
4
7.5
15

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.7x -15 = 2x + 10 => 5x = 25 => x = 5

Number System
If the L.C.M of two numbers is 750 and their product is 18750, find the H.C.F of the numbers.

30
50
25
125

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

H.C.F = (Product of the numbers) / (Their L.C.M) = 18750/750 = 25.

MORE MCQ ON Number System

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