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Number System

Number System
What number should replace both the question marks (?) in the following question ?

82
84
85
83

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

84

Number System
The number of prime factors of (6)10×(7)17×(55)27

101
61
41
91

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

91

Number System
Sum of square of first number and cube of second number together is 568. Also square of the second number is 15 less than square of 8. What is the value of three-fifth of the first number ?

7
8
6
9

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the first number be x and the second number be y.∴ y² = 82 - 15 = 64 - 15 = 49∴ y = 7∴ x² + 73 = 568= x² + 343 = 568= x² + 568 - 343 = 225∴ x = √225 = 15∴ 15 x 3/5 = 9

Number System
732.96 + 405.38 - 604.08 - 105.44 + 222.86 = ?

651.68
641.68
621.68
631.68

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 1361.20 - 709.52 = 651.68

Number System
√343 = ?

21
19
18
20

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = √343 = 18

Number System
217 * 217 + 183 * 183 = ?

81268
80578
79698
80698

ANSWER DOWNLOAD EXAMIANS APP
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