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Number System

Number System
?125÷5x ?=6265

1253
1452
124
153

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

1253

Number System
One half of a two digit number exceeds its one third by 6. What is the sum of the digits of the number?

9
3
5
7

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x/2 – x/3 = 6=> x =63 + 6 = 9

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

77
80
83
85

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
Twenty times a positive integer is less than its square by 96. What is the integer?

24
Cannot be determined
20
30

ANSWER DOWNLOAD EXAMIANS APP

Number System
If the sum of the two numbers is 22 and the sum of their squares is 404, then the product of the numbers is:

44
88
40
80

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the numbers be x and y. Then, (x + y) = 22 and x2 + y2 = 404 Now, 2xy = (x + y)2 - (x2 + y2) 2xy= 222 - 404 = 484 - 404 = 80xy = 40

Number System
384×12×2=?

8465
6123
9216
7487

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

9216

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