Number System 65 x 288 ÷ 52 = 1.8 x ? 180 190 210 200 180 190 210 200 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 65x288/52x1.8 = 200
Number System 84 * 29 + 365 = ? - 2801 2801 - 2071 2436 - 2801 2801 - 2071 2436 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP - 84 * (30 - 1) + 365= - (84 * 30) + 84 + 365= - 2520 + 449 = - 2071
Number System The sum and the product of two numbers are 25 and 144 respectively, the difference of the number is? 7 3 5 11 7 3 5 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 25xy = 144(x- y)2 = (x + y)2 – 4xy(x- y)2 = 625 – 576 => (x – y) = 7
Number System In an examination, 68% of the total examinees passed. If the number of failures is 248, the total number of examinees is 775 640 725 750 775 640 725 750 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Failed students are 32% which is 248.∴ Total = 24800/32 = 775
Number System Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999 490 495 485 480 490 495 485 480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required average score = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8 = 3880 / 8 = 485
Number System 7.98 x 3.75 + 1.28 x 15.5 = ? 46.765 49.765 48.765 47.765 46.765 49.765 48.765 47.765 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 29.925 + 19.84 = 49.765
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