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Number System

Number System
Sum of two numbers is 80. Greater number exceeds by 5 from four times of the smaller. Find the numbers?

64, 16
65, 15
62, 18
60, 20

ANSWER DOWNLOAD EXAMIANS APP

Number System
3√68921 = ?

31
41
21
51

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 3√68921= 3√41 x 41 x 41= 41

Number System
1827÷ 36 x ?=162.4

1.9
3.2
4.3
2.6

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

3.2

Number System
What least number shall be added to 4700 to make it a perfect square ?

91
81
61
71

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(69)² = 4761 and (68)² = 4624Clerly 4624 < 4700 < 4761So 61 should be added to make 4700 a perfect square.

Number System
50% of 8/15 of 9/4 of 5/3 of 333 = ?

444
333
666
555

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

50% of [8x9x5/15x4x3 x 333]= 50% of 666= 333

Number System
If 2^(2x-1) = 8^(3-x), then the value of x is:

6
5
9
2

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

2

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