Number System In an examination, 68% of the total examinees passed. If the number of failures is 248, the total number of examinees is 775 725 640 750 775 725 640 750 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Failed students are 32% which is 248.∴ Total = 24800/32 = 775
Number System 217 * 217 + 183 * 183 = ? 80698 80578 79698 81268 80698 80578 79698 81268 ANSWER DOWNLOAD EXAMIANS APP
Number System Simplify the 121 * 175 + 363 * 275 None of these 316600 328100 363000 None of these 316600 328100 363000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 121 * 175 + 363 * 275 => 121 * 175 + 121 * 3 * 275121 * 175 + 121 * 825= 121 * (175 + 825) = 121000
Number System The average of five consecutive even numbers, p, q, r, s and t is 40. What is the product of 'r' and 's' ? 1580 1680 1780 1480 1580 1680 1780 1480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x, x + 2, x + 4, x + 6, and x + 8Avg = x + x + 2 + x + 4 + x + 6 + x + 8/5 = 40Therefore, 5x + 20 = 200Therefore, x = 180/5 = 36Therefore, r = x + 4 = 40 s = x + 6 = 42Therefore, Product = 1680
Number System What is the value of ? in the following equations ? 72/? = ?/50 100 80 40 60 100 80 40 60 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 one third of 3/4 of a number is 21. Then find the number? 84 840 630 63 84 840 630 63 ANSWER DOWNLOAD EXAMIANS APP
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