Number System 217 * 217 + 183 * 183 = ? 80698 81268 79698 80578 80698 81268 79698 80578 ANSWER DOWNLOAD EXAMIANS APP
Number System What is 846 times 323 ? 264258 283298 273258 293798 264258 283298 273258 293798 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 846 x 323 = 273258
Number System Supply the missing figure : 1, 4, 9, 16, 25 .... 49 16 23 36 42 16 23 36 42 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 36
Number System Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999 485 480 490 495 485 480 490 495 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required average score = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8 = 3880 / 8 = 485
Number System A box contains 5 red, 4 black and 4 blue balls. If 3 balls are drawn randomly from the box, what is the probability that there are exactly 2 blue balls in the three drawn balls ? 29/145 28/144 27/143 30/146 29/145 28/144 27/143 30/146 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total balls = 5 + 4 + 4 = 13∴ n(S) = 13C3 = 2862 blue balls can be selected from 4 balls in 4C2 = 6 ways and the remaining one ball is to be selected from 9 balls in 9C1 = 9 ways ∴ n(E) = 6 x 9∴ P(E) = 6 x 9/286 = 27/143
Number System 7432 ÷ 32 x ? = 2787 21 41 78 12 21 41 78 12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7432/32 x ? = 2787= ? = 2787 x 32/7432 = 12
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