Number System √207.36 = ? 14.4 16.7 15.7 12.3 14.4 16.7 15.7 12.3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √207.36 = √20736/√100 = 144/10 = 14.4
Number System 84 * 29 + 365 = ? 2801 - 2801 2436 - 2071 2801 - 2801 2436 - 2071 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP - 84 * (30 - 1) + 365= - (84 * 30) + 84 + 365= - 2520 + 449 = - 2071
Number System When 102 is reduced from a number, the number gets reduced by 88%. What is that number ? 750 550 850 650 750 550 850 650 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 850
Number System (√6 + 1)² = ? + 2√6 8 6 7 5 8 6 7 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (√6 + 1)² - 2√6= (√6)² + 2 x √6 + 1 + 1² - 2√6= 6 + 2√6 + 1 - 2√6 = 6 + 1 = 7
Number System What is the value of ? in the following equations ? 72/? = ?/50 40 100 60 80 40 100 60 80 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60
Number System If a number is multiplied by. three-fourth of itself, the value thus obtained is 10800. What is that number ? 260 60 180 120 260 60 180 120 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 3x/4 = 10800= x² = 10800 x 4/3 = 14400∴ x = √14400 = 120
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