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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
What is 50% of 40% of Rs. 3,450?

670
640
690
630

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

40% * 3450 = 1380then, 50 % * 1380 = 690

Number System
480% of 350 + 620% of 275 = ?

4385
5385
2385
3385

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 480 x 350/100 + 620 x 275/100= 1680 + 1705 = 3385

Number System
What should come in place of the question mark (?) in the following number series ? 888 888 444 148 ? 7.4

35
33
29
37

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

888 ÷ 1 = 888888 ÷ 2 = 444444 ÷ 3 = 148148 ÷ 4 = 3737 ÷ 5 = 7.4

Number System
96% of a number is 19584. What is 56% of that number ?

11224
11524
11424
11324

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the number be x.According to the question.96% of x = 19584= x = 1958 x 100/96 = 20400∴ 56% of 20400= 20400 x 56/100= 11424

Number System
(3² x 4² x 5) ÷ 36 = (?)² - 80

16
14
10
12

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

(?)² = 3² x 4² x 5/36 + 80= 20 + 80 = 100∴ ? = √100 = 10

MORE MCQ ON Number System

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