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Number System

Number System
What is the least number, which is perfect square but contains 2700 as its factor?

10800
2700
5400
1800

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

900 * 3 * 3 = 8100

Number System
A certain number when divided by 39 leaves a remainder 20, what is the remainder when the same number is divided by 13?

11
7
5
0

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

39 + 20 = 59/13 = 7 (Remainder)

Number System
Find the least number with which 16200 should be multiplied, to make it a perfect cube.

360
45
48
36

ANSWER DOWNLOAD EXAMIANS APP

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

61
57
72
68

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
217 * 217 + 183 * 183 = ?

79698
80698
81268
80578

ANSWER DOWNLOAD EXAMIANS APP

Number System
3√103820 x 3√274620 = ?

3045
3065
3035
3055

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

3√103820 = 47 and 3√274620 = 65 ∴ ? = 47 x 65 = 3055

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