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Number System

Number System
The product of two successive numbers is 4556. Which of the following is the larger of the two numbers?

63
67
68
78

ANSWER DOWNLOAD EXAMIANS APP

Number System
The product of two consecutive odd numbers is 6723. Find is the greater number.

77
85
83
80

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the first odd number be x.Then, the other odd number would be x + 2.∴ x(x+2) = 6723= x2 + 2x = 6723= x2 + 2x = 6723= x2 + 2x - 6723 = 0= x2 + 83 - 81 x - 6723 = 0= x(x+83) - 81 (x + 83) = 0= (x + 83) (x - 81) = 0= (x + 83) (x - 81) = 0= x - 81 = 0∴ x = 81Hence, greater number = x + 2 = 81 + 2 = 83

Number System
One-eighth of a number is 76. What will be 54% of the number ?

318.32
328.32
321.32
332.32

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the no. be x Therefore, 1/8 of x = 76Therefore, x = 60854% of 608                      = 608 x 54/100                      = 328.32

Number System
If (83)² is subtracted from the square of a number, the answer so obtained is 8487. What is the number ?

124
163
179
146

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x Therefore, x² - (83)² = 8487x² = 8487 + (83)²x² = 8487 + 6889x²   = 15376Therefore, x² = 15376                    x = 124

Number System
If 70% of an equal to 40% of b, then ratio between a and b is?

7: 4
None
7: 11
4: 7

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

70 a = 40 ba: b = 4: 7

Number System
If 4 2/3 is subtracted form 10 1/2 and the difference is multiplied by 450, then what is the final answer?

2875
2725
2675
None of these

ANSWER DOWNLOAD EXAMIANS APP
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