Number System Supply the missing figure : 2, 6, 12, 20, 30 ... 56 40 42 39 41 40 42 39 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 42
Number System ?125÷5x ?=6265 124 1253 1452 153 124 1253 1452 153 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1253
Number System √(17)² + (17)² + (5)² - 2 = ? 17 16 19 18 17 16 19 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √49 + 289 + 25 - 2 = √361 = 19
Number System 3√103823 = ? 52 44 41 47 52 44 41 47 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√103823 = 3√47 x 47 x 47 = 47
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 ? 80/150 80/152 80/153 80/151 80/150 80/152 80/153 80/151 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 1089/? = ?/1296 1348 1278 1082 1188 1348 1278 1082 1188 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 1089 x 1296(?)²= (11 x 11 x 9) x (12 x 12 x 9)(?)= 11 x 12 x 9= 1188
EXAMIANS