Number System 7432 ÷ 32 x ? = 2787 21 41 12 78 21 41 12 78 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7432/32 x ? = 2787= ? = 2787 x 32/7432 = 12
Number System √207.36 = ? 16.7 12.3 14.4 15.7 16.7 12.3 14.4 15.7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √207.36 = √20736/√100 = 144/10 = 14.4
Number System The number of prime factors of (6)10×(7)17×(55)27 101 41 61 91 101 41 61 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 91
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 ? 89/190 92/190 91/190 90/190 89/190 92/190 91/190 90/190 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
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1200 1082 1092 1192 1200 1082 1092 1192 ANSWER DOWNLOAD EXAMIANS APP
Number System 8988 / 8 / 4 = ? 4494 280.875 561.75 2247 4494 280.875 561.75 2247 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8988 * 1/8 * 1/4 = 2247/8 = 280.875
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