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Number System

Number System
Find the nearest to 25268 which is exactly divisible by 467?

25208
25218
25228
25308

ANSWER DOWNLOAD EXAMIANS APP

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

76
77
75
78

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

Number System
450% of a number is 4725. What is 82% of that number ?

861
851
841
871

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.∴ x x 450/100 = 4725= x = 4725 x 100/450 = 1050∴ 82% of 1050 = 1050 x 82/100= 861

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

24.84
25.84
21.84
27.84

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
√(17)² + (17)² + (5)² - 2 = ?

18
19
17
16

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = √49 + 289 + 25 - 2 = √361 = 19

Number System
The difference between a positive proper fraction and its reciprocal is 9/20. The fraction is:

4/5
3/10
5/4
3/5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

1/x - x = 9/20 20x2 + 9x - 20 = 0 20x2 + 25x - 16x - 20 = 0 5x(4x + 5) -4(4x + 5) = 0(4x + 5)(5x - 4) = 0x = 4/5

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