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Number System

Number System
If a number is subtracted from its square we get 272. Find the number?

17
14
22
24

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x2 – x = 272 => x =17

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

21.84
25.84
27.84
24.84

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
On dividing a number by 68, we get 269 as quotient and 0 as remainder. On dividing the same number by 67, what will be the remainder?

2
1
0
3

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Number = 269 * 68 + 0 = 1829267) 18292 (273       18291         --------                1Required number = 1.

Number System
If the fractions8/5,7/2,9/5,5/4,4/5 are arranged in descending order of their values, which one will be fourth?

7/9
11/13
1/3
5/4

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

5/4

Number System
Sum of two numbers is 15. Two times of the first exceeds by 5 from the three times of the other. Then the numbers will be?

9, 6
6, 9
7, 8
10, 5

ANSWER DOWNLOAD EXAMIANS APP

Number System
Two third of three- fifth of one fourth of a number is 24, what is 30% of that number?

72
69
90
42

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x * 2/3 * 3/5 * 1/4 = 24x = 240240 * 30/100 = 72

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