Number System What is the least number to be subtracted from 696 to make it a perfect square? 16 20 1 71 16 20 1 71 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The numbers less than 696 and are squares of certain numbers are 676, 625.The least number that should be subtracted from 696 to make it perfect square = 696 - 676 = 20.
Number System If the difference between a number and its three-fourth is 18, find the number. 72 61 68 57 72 61 68 57 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x - 3x/4 = 18= x/4 = 18= x = 4 x 18 = 72
Number System When (21)² is subtracted from the square of a number the answer obtained is 1584. What is the number ? 45 35 55 65 45 35 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 A number when multiplied by five times of itself give the value equal to 1445. What is the number ? 15 17 16 18 15 17 16 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x x 5x = 1445= 5x² = 1445= x² = 289∴ x = 17
Number System {3√4913}² = ? 121 225 333 289 121 225 333 289 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (3√4913)² = (17)² = 289
Number System Which choice provides the answer in the following : If 2 * 3 = 36, 5 * 4 = 400, 6 * 2 = 144, 3 * 3 = 81; then, 5 * 5 = ? 625 425 325 525 625 425 325 525 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 625
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