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Number System

Number System
If one-seventh of a number is 55 then 40% of that number = ?

147
171
154
163

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the no. be x ,             Therefore, x/7 = 55Therefore, x = 55 x 7 = 385Therefore, 49% of 385 = 154

Number System
Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is

8.684
8.484
8.784
8.584

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

8.484

Number System
√2304 x √? = 2832

3481
3381
3681
3581

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

√2304 x √? = 2832= 48 x √? = 2832= √? = 2832/48 = 59∴? = 59 x 59 = 3481

Number System
The difference between 45% of a number and 18% of the same number is 145.8. What is 30% of that number ?

245
141
162
188

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.45% of x - 18% of x = 145.8∴ x/100 (45 - 18) = 145.8∴ x = 145.8 x 100/27 = 540∴ 30% of 540 = 540 x 30/100 = 162

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

20
Cannot be determined
30
24

ANSWER DOWNLOAD EXAMIANS APP

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

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

ANSWER DOWNLOAD EXAMIANS APP
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