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Number System

Number System
In a division sum, the divisor is 10 times the quotient and 5 times the remainder. If the remainder is 46, the dividend is:

5336
6890
9865
2568

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

5336

Number System
When (21)² is subtracted from the square of a number the answer obtained is 1584. What is the number ?

45
65
55
35

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.According to the question,x² - (21)² = 1584= x² - 441 = 1584 = x² = 1584 + 441 = 2025∴ x = √2025 = 45

Number System
1260 x 1.45 - 888 x 1.75 = ?

273
367
256
295

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 1260 x 1.45 - 888 x 1.75= 1827 - 1554 = 273

Number System
Which one of the following numbers is exactly divisible by 11?

245642
315624
235641
415624

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(4 + 5 + 2) - (1 + 6 + 3) = 1, not divisible by 11.(2 + 6 + 4) - (4 + 5 + 2) = 1, not divisible by 11.(4 + 6 + 1) - (2 + 5 + 3) = 1, not divisible by 11.(4 + 6 + 1) - (2 + 5 + 4) = 0. So, 415624 is divisible by 11.

Number System
3√103823 = ?

44
41
52
47

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 3√103823 = 3√47 x 47 x 47 = 47

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

6543
8024
9160
7234

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

8024

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