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Number System

Number System
(√6 + 1)² = ? + 2√6

8
6
7
5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = (√6 + 1)² - 2√6= (√6)² + 2 x √6 + 1 + 1² - 2√6= 6 + 2√6 + 1 - 2√6 = 6 + 1 = 7

Number System
1008÷36=?

25
27
28
26

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

28

Number System
If the difference between a number and its three-fourth is 18, find the number.

57
68
61
72

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.According to the question,x - 3x/4 = 18= x/4 = 18= x = 4 x 18 = 72

Number System
The difference between 78% of a number and 59% of the same number is 323. What is 62% of that number ?

Rs. 1054
Rs. 986
Rs. 926
Rs. 945

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.78% of x - 59% of x = 323= 78x - 59x/100 = 323= 19x/100 = 323∴ x = 323 x 100/19 = 1700= 62% of 1700 = 1700 x 62/100 = 1054

Number System
What should come in place of the question mark (?) in the following number series ? 888 888 444 148 ? 7.4

29
35
33
37

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

888 ÷ 1 = 888888 ÷ 2 = 444444 ÷ 3 = 148148 ÷ 4 = 3737 ÷ 5 = 7.4

Number System
If the difference between a number and its three fifths is 62, what is the number ?

165
155
175
145

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.∴ x - 3x/5 = 62or x = 62 x 5/2 = 155

MORE MCQ ON Number System

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