Number System 8988 / 8 / 4 = ? 4494 280.875 561.75 2247 4494 280.875 561.75 2247 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8988 * 1/8 * 1/4 = 2247/8 = 280.875
Number System When (21)² is subtracted from the square of a number the answer obtained is 1584. What is the number ? 35 45 55 65 35 45 55 65 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 The product of two natural numbers is 17. Then, the sum of the reciprocals of their squares is: 290/289 289/290 289 1/289 290/289 289/290 289 1/289 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be a and b. Then,ab = 17, a = 1 and b = 17So, 1/a2 + 1/b2 = (a2 + b2)/a2 b2 = (12 + 172)/(1 * 17)2 = 290/289
Number System 124, 235, 447, 760, 1174, ? 1689 1589 1489 1389 1689 1589 1489 1389 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP +111, +212, +313, +414
Number System The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 170 168 171 169 170 168 171 169 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System When 102 is reduced from a number, the number gets reduced by 88%. What is that number ? 850 550 650 750 850 550 650 750 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 850
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