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Number System

Number System
8988 / 8 / 4 = ?

2247
280.875
4494
561.75

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

8988 * 1/8 * 1/4 = 2247/8 = 280.875

Number System
If 1.5 x= 0.04 y, then the value of (y-x) (y+x) is:

73/77
93/77
83/77
77/73

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

73/77

Number System
√(17)² + (17)² + (5)² - 2 = ?

16
19
18
17

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = √49 + 289 + 25 - 2 = √361 = 19

Number System
If the numberator of a fraction is increased by 50% and denominator by 20% the fraction become 9/15. What was the original fraction ?

13/25
6/7
12/25
3/5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the fraction be x/yWe have 150x/120y = 9/15= x/y = 12/25

Number System
The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers?

168
170
169
171

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

168

Number System
√360 - 225 x 2 + 379 = ?

20
17
19
18

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = √360 - 225 x 2 + 379 = √360 - 450 + 379 = √289= 17

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