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Number System

Number System
(12)² - (4.4)² - (0.04)² = ?

129.6384
125.6384
124.6384
131.6384

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(12)² - (4.4)² - (0.04)²= 144 - 19.36 - 0.0016= 124.64 - 0.0016= 124.6384

Number System
Which choice provides the answer in the following : If 2 * 3 = 36, 5 * 4 = 400, 6 * 2 = 144, 3 * 3 = 81; then, 5 * 5 = ?

325
625
425
525

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

625

Number System
217 * 217 + 183 * 183 = ?

80578
81268
79698
80698

ANSWER DOWNLOAD EXAMIANS APP

Number System
Find out the smallest possible number which will be divisible by 1122 as well as 153.

3366
4366
2366
1366

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

3366

Number System
Find the number which multiplied by 15 is increased by 196.

26
28
20
14

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x. Then,15x - x = 196x = 14

Number System
The sum of the digits of a two-digit number is 12, and the difference between the number and the number obtained by interchanging the two digits of the number is 18. Find the number.

50
12.5
75
25

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be 10x + y.∴ x + y = 12    ...........(i)10x + y - (10x + x) = 18or 10x + y - 10y - x = 18or 9x - 9y = 18∴ x - y = 2From (i) and (ii), x = 7, y = 5∴ Number = 75

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