Number System √2304 x √? = 2832 3381 3681 3581 3481 3381 3681 3581 3481 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √2304 x √? = 2832= 48 x √? = 2832= √? = 2832/48 = 59∴? = 59 x 59 = 3481
Number System Supply the missing figure : 3, 11, 8, 16, 13 .... 18 12 28 21 18 12 28 21 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
Number System A box contains 5 red, 4 black and 4 blue balls. If 3 balls are drawn randomly from the box, what is the probability that there are exactly 2 blue balls in the three drawn balls ? 30/146 29/145 27/143 28/144 30/146 29/145 27/143 28/144 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total balls = 5 + 4 + 4 = 13∴ n(S) = 13C3 = 2862 blue balls can be selected from 4 balls in 4C2 = 6 ways and the remaining one ball is to be selected from 9 balls in 9C1 = 9 ways ∴ n(E) = 6 x 9∴ P(E) = 6 x 9/286 = 27/143
Number System The population of a town increases by 15% in the first year and decreases by 25% in the second year. If its current population is 168480 then what will be its population after two years ? 145914 145214 145314 145714 145914 145214 145314 145714 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Population of the town= 168480 x 115/100 x 75/100= 145314
Number System If R2 = S3 = K, where R, S and K are integers. Find the smallest positive integral value of K. (Greater than 1) 64 88 75 54 64 88 75 54 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 64
Number System 384×12×2=? 9216 6123 8465 7487 9216 6123 8465 7487 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9216
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