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Number System

Number System
If a number is subtracted from its square we get 272. Find the number?

24
17
22
14

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?

5
10
11
9

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

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

8.584
8.484
8.784
8.684

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

8.484

Number System
(2560 x 1.4) +(7400 x 0.6) =?

6543
9160
7234
8024

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

8024

Number System
8988 / 8 / 4 = ?

280.875
4494
561.75
2247

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

Number System
If the difference between a number and its 2/5 is 240, find the number.

480
360
440
400

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the no. be x Therefore x - 2x/5 = 240,        Therefore, 3x/5 = 240Therefore, x = 240x5/3 = 400

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