Number System What is the least number, which is perfect square but contains 2700 as its factor? 2700 5400 10800 1800 2700 5400 10800 1800 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 900 * 3 * 3 = 8100
Number System How many figures are required to number the pages the pages of a book containing 365 pages? 897 987 967 977 897 987 967 977 ANSWER DOWNLOAD EXAMIANS APP
Number System A certain number when divided by 45 leaves a remainder 31, what is the remainder if the same number be divided by 15? 1 11 13 9 1 11 13 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 45 + 31 = 76/15 = 1 (Remainder)
Number System What value should come in place of ? in the given number series ? 15, 51, 162, 498, 1509, ? 5656 7878 3434 4545 5656 7878 3434 4545 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 15, (15 + 2) x 3 = 51,(51 + 3) x 3 = 162, (162 + 4) x 3 = 498, (498 + 5) x 3 = 1509(1509 + 6) x 3 = 4545
Number System What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12 9 2 7 3 9 2 7 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9
Number System If the sum and difference of two numbers are 20 and 8 respectively, then the difference of their square is: 12 180 28 160 12 180 28 160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then, x + y = 20 and x - y = 8x2 - y2 = (x + y)(x - y) = 20 * 8 = 160.
EXAMIANS