Number System Find the smallest number which should be multiplied with 520 to make it a perfect square. 30 55 None of these 120 30 55 None of these 120 ANSWER DOWNLOAD EXAMIANS APP
Number System In an examination, 68% of the total examinees passed. If the number of failures is 248, the total number of examinees is 640 725 750 775 640 725 750 775 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Failed students are 32% which is 248.∴ Total = 24800/32 = 775
Number System 7.98 x 3.75 + 1.28 x 15.5 = ? 48.765 46.765 47.765 49.765 48.765 46.765 47.765 49.765 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 29.925 + 19.84 = 49.765
Number System The sum of two numbers is 25 and their difference is 13. Find their product. 315 104 114 325 315 104 114 325 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then x + y = 25 and x - y = 13.x = 19; y = 6xy = 19 * 6 = 114
Number System (2560 x 1.4) +(7400 x 0.6) =? 7234 8024 6543 9160 7234 8024 6543 9160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8024
Number System The sum of four consecutive even numbers is 36. Find the sum of the squares of these numbers? 252 344 296 388 252 344 296 388 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four numbers be x, x + 2, x + 4 and x + 6.=> x + x + 2 + x + 4 + x + 6 = 36=> 4x + 12 = 36 => x = 6The numbers are 6, 8, 10 and 12.Sum of their squares = 62 + 82 + 102 + 122 = 36 + 64 + 100 + 144 = 344.
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