Number System Find the least value of 3x + 4y if x2y3 = 6. 7 3 10 6 7 3 10 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 10
Number System 7.8% of 12.5 + 2.5% of 161 = ? 2 12 9 5 2 12 9 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7.8 x 12.5/100 + 2.5 x 161/100= 0.975 + 4.025= 5
Number System A basket contains 5 blue, 4 green and 3 red ball. If three balls are picked at random, what is the probability that at least one is red ? 34/55 32/51 31/58 37/52 34/55 32/51 31/58 37/52 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Probability of having no red ball is9C3 / 12C3 = 21/55Probability of having at least one red ball is 1 - 21/55 = 34/55
Number System Find the least number when successively divided by 2, 3 and 7 leaves remainders 1, 2 and 3 respectively? 65 75 61 67 65 75 61 67 ANSWER DOWNLOAD EXAMIANS APP
Number System 68375 + 72848 - ? = 34346 + 49569 59308 58308 None of these 57308 59308 58308 None of these 57308 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 68375 + 72848 - 34346 - 49569 = 141223 - 83915 = 57308
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
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