Number System Two-third of a positive number and 25/216 of its reciprocal are equal. The number is: 144/25 25/144 12/5 5/12 144/25 25/144 12/5 5/12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,2/3 x = 25/216 * 1/xx2 = 25/216 * 3/2 = 25/144 x = 5/12
Number System On converting the following base-2 numeral in base ten, 1101101, we get 107 109 106 108 107 109 106 108 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 109
Number System On dividing number by 56, we get 29 as remainder. On dividing the same number by 8, what will be the remainder? 7 4 5 6 7 4 5 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let x be the number and y be the quotient. Then, x = 357 * y + 39= (17 * 21 * y) + (17 * 2) + 5= 17 * (21y + 2) + 5.Required remainder = 5.
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 Find the least value of 3x + 4y if x2y3 = 6. 3 10 7 6 3 10 7 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 10
Number System 8988 / 8 / 4 = ? 4494 280.875 2247 561.75 4494 280.875 2247 561.75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8988 * 1/8 * 1/4 = 2247/8 = 280.875
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