Number System 106 * 106 - 94 * 94 = ? 1904 2400 2000 1906 1904 2400 2000 1906 ANSWER DOWNLOAD EXAMIANS APP
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 ? 80/152 80/151 80/150 80/153 80/152 80/151 80/150 80/153 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 (2560 x 1.4) +(7400 x 0.6) =? 7234 6543 9160 8024 7234 6543 9160 8024 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8024
Number System How many numbers up to 100 and 300 are divisible by 11? 18 21 20 22 18 21 20 22 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (300 – 100)/11 = 200/11 = 18 2/1118 Numbers
Number System If 35% of a number is 899.5, what is 68% of that number ? 1847.6 1547.6 1747.6 2247.6 1847.6 1547.6 1747.6 2247.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Suppose the number is x.Then 35% of x = 899.5∴ 68% of x = 68/35 x 899.5 = 1747.6
Number System On dividing number by 357, we get 39 as remainder. On dividing the same number by 17, what will be the remainder? 0 5 3 11 0 5 3 11 ANSWER DOWNLOAD EXAMIANS APP
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