Number System Which choice provides the answer : If 2 + 3 = 10, 6 + 5 = 66, 7 + 2 = 63, 9 + 7 = 144 then, 8 + 4 = ? 88 96 114 102 88 96 114 102 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 96
Number System The product of two consecutive odd numbers is 4623. What is the product of the next two consecutive odd numbers ? 8795 6782 7745 5183 8795 6782 7745 5183 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √4623 = 6767 x 69 = 4623∴ Required product = 71 x 73 = 5183
Number System What should come in place of question mark (?)? 8 : 1 1 : : 72: 79 109 99 89 79 109 99 89 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let ? = xTherefore 8 : 11 : 72 : xTherefore x = (11 x 72) / 8 = 99
Number System 1256+4813+765=? 6831 6836 6839 6834 6831 6836 6839 6834 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1256+4813+765= 6069+765=6834
Number System If 1.5 x= 0.04 y, then the value of (y-x) (y+x) is: 73/77 77/73 93/77 83/77 73/77 77/73 93/77 83/77 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 73/77
Number System An urn contains 9 blue, 7 white and 4 black balls. If 2 balls are drawn at random, then what is the probability that only one ball is white ? 92/190 91/190 90/190 89/190 92/190 91/190 90/190 89/190 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total possible outcomes = 20C2 = 20 x 19/1 x 2 = 190Total favourable outcomes = 7C1 x 13C1 = 7 x 13 = 91∴ Required probability = 91/190
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