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Number System

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

125.6384
124.6384
129.6384
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
If a number is subtracted from its square we get 272. Find the number?

24
17
14
22

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

x2 – x = 272 => x =17

Number System
A number when divided by 221 gives a remainder 43, what remainder will be obtained by dividing the same number 17?

11
5
9
10

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

221 + 43 = 264/17 = 9 (Remainder)

Number System
732.96 + 405.38 - 604.08 - 105.44 + 222.86 = ?

631.68
641.68
621.68
651.68

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 1361.20 - 709.52 = 651.68

Number System
Complete the series : 81, 69, 58, 48, 39 ........

31
28
29
30

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

31

Number System
If the L.C.M of two numbers is 750 and their product is 18750, find the H.C.F of the numbers.

30
50
25
125

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

H.C.F = (Product of the numbers) / (Their L.C.M) = 18750/750 = 25.

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