Number System How many figures are required to number the pages the pages of a book containing 365 pages? 967 977 897 987 967 977 897 987 ANSWER DOWNLOAD EXAMIANS APP
Number System Complete the series : 1, 8, 27, 64, 125, 216 ..... 353 373 363 343 353 373 363 343 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 343
Number System Find the greatest number which leaves the same remainder when it divides 25, 57 and 105. 18 16 12 8 18 16 12 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 105 - 57 = 4857 - 25 = 32105 - 25 = 80The H.C.F of 32, 48 and 80 is 16.
Number System If a number is multiplied by. three-fourth of itself, the value thus obtained is 10800. What is that number ? 260 180 120 60 260 180 120 60 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 3x/4 = 10800= x² = 10800 x 4/3 = 14400∴ x = √14400 = 120
Number System Which number should replace question mark (?) in the following equation ? ?/342 = 38/? 114 116 112 118 114 116 112 118 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 342 x 38Therefore, ? = √342 x 38 = √38 x 9 x 38 = 38 x 3 = 114
Number System A two-digit number is such that the product of the digits is 8. When 18 is added to the number, then the digits are reversed. The number is: 42 81 24 18 42 81 24 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the ten's and unit's digit be x and 8/x respectively. Then, (10x + 8/x) + 18 = 10 * 8/x + x 9x2 + 18x - 72 = 0 x2 + 2x - 8 = 0 (x + 4)(x - 2) = 0 x = 2 So, ten's digit = 2 and unit's digit = 4. Hence, required number = 24.
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