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Number System

Number System
(1024—263—233)÷(986—764— 156) =?

8
6
10
None of these

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

8

Number System
Thrice the square of a natural number decreased by 4 times the number is equal to 50 more than the number. The number is:

5
4
10
6

ANSWER DOWNLOAD EXAMIANS APP

Number System
What should come in place of question mark (?)? 8 : 1 1 : : 72:

109
79
99
89

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let ? = xTherefore 8 : 11 : 72 : xTherefore x = (11 x 72) / 8 = 99

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

78
77
75
76

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

Number System
What should come in the place of ' ? ' in the following number series ? 2, 5, 9, 19, 37, ?

75
76
78
77

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

2 x 2 + 1 = 5;5 x 2 - 1 = 99 x 2 + 1 = 19: 19 x 2 - 1 = 3737 x 2 + 1 = 75

Number System
Two numbers have a H.C.F of 16 and a product of two numbers is 2560. Find the L.C.M of the two numbers?

150
160
140
170

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

L.C.M of two numbers is given by(Product of the two numbers) / (H.C.F of the two numbers) = 2560/16 = 160.

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