Number System When 102 is reduced from a number, the number gets reduced by 88%. What is that number ? 650 750 550 850 650 750 550 850 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 850
Number System Complete the series : 11, 12, 17, 18, 23, 24 ... 12 14 30 None of these 12 14 30 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP None of these
Number System What should come in place of question mark (?)? 8 : 1 1 : : 72: 79 99 109 89 79 99 109 89 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let ? = xTherefore 8 : 11 : 72 : xTherefore x = (11 x 72) / 8 = 99
Number System (95.6x 910.3) ÷ 92.56256 = 9? 13.34 12.24 14.44 15.54 13.34 12.24 14.44 15.54 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 13.34
Number System A basket contains eight white and ten black balls. Two draws of one ball each are made without replacement. What is the probability that one ball is white and the other ball is black ? 80/153 80/151 80/152 80/150 80/153 80/151 80/152 80/150 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Two balls can be drawn from 18 balls in 18C2 Ways, ie 153 ways. One white from 8 white balls can be drawn in 8C1 = 8 ways and one black ball from 10 black can be drawn in 10C1 = 10 ways.∴ n(S) = 153, n(E) = 8 x 10 = 80∴ P(E) = 80/153
Number System The digit in unit's place of a three digit number is thrice the digit in ten's place & the digit in hundred's place is two-third of the digit in ten's place. If the sum of three digits of number is 14 211 221 215 239 211 221 215 239 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the ten's digit be x.∴ Unit's digit = 3xHundered's digit = 2x/3∴ x + 3x + 2x/3 = 14= 3x + 9x + 2x = 14 x 3= 14x = 14 x 3= x = 3∴ Number = 239
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