Number System Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999 485 480 495 490 485 480 495 490 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required average score = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8 = 3880 / 8 = 485
Number System Supply the missing figure : 3, 11, 8, 16, 13 .... 18 28 12 18 21 28 12 18 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
Number System What should come in place of question mark (?) in the following number series ? 7, 176, 480, 1058, 2188, 4426, ? 8882 8884 8888 8881 8882 8884 8888 8881 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Series is (No. + 9²) x 2, (+8²) x 2, (+7²) x 2, (+6²) x 2.......
Number System 217 * 217 + 183 * 183 = ? 79698 80698 81268 80578 79698 80698 81268 80578 ANSWER DOWNLOAD EXAMIANS APP
Number System 7432 ÷ 32 x ? = 2787 41 21 12 78 41 21 12 78 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7432/32 x ? = 2787= ? = 2787 x 32/7432 = 12
Number System If x + y = 61 and xy = 888, What is the value of x²+ y² ? 1945 1965 1975 1955 1945 1965 1975 1955 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Because (x + y)² = x² + y² + 2xy∴ x² + y² = (x + y)² - 2xy∴ x² + y² = (61)² - 2 x 888= 3721 - 1776 = 1945
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