Number System What should come in place of question mark (?) in the following number series ? 7, 176, 480, 1058, 2188, 4426, ? 8884 8882 8888 8881 8884 8882 8888 8881 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Series is (No. + 9²) x 2, (+8²) x 2, (+7²) x 2, (+6²) x 2.......
Number System The difference between 71% of a number and 46% and of the same number is 212. What is 75% of that number 724 636 673 845 724 636 673 845 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ 71% of x - 46% of x = 212∴ (71 - 46)% of x = 212∴ 25/100 x x = 212∴ x = 212 x 4 = 848∴ 75% of 848 = 848 x 75/100 = 636
Number System What is the least number to be subtracted from 696 to make it a perfect square? 1 71 20 16 1 71 20 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The numbers less than 696 and are squares of certain numbers are 676, 625.The least number that should be subtracted from 696 to make it perfect square = 696 - 676 = 20.
Number System 2536+4851—?=3450+313 3624 5243 4567 6784 3624 5243 4567 6784 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3624
Number System What will be the next number in the following number series ? 182 191 162 177 182 191 162 177 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1² + 1, 3² + 3, 5² + 5, 7² + 7
Number System A basket contains 5 blue, 4 green and 3 red ball. If three balls are picked at random, what is the probability that at least one is red ? 34/55 37/52 32/51 31/58 34/55 37/52 32/51 31/58 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Probability of having no red ball is9C3 / 12C3 = 21/55Probability of having at least one red ball is 1 - 21/55 = 34/55
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