Number System 2/11 of 3/7 of 8/13 of 12012 = ? 449 576 241 321 449 576 241 321 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 2 x 3 x 8 x 12012/11 x 7 x 13 = 576
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: 81 18 42 24 81 18 42 24 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.
Number System (444 x 44 x 4) ÷ 40 ? 1953.6 2053.6 2153.6 1853.6 1953.6 2053.6 2153.6 1853.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 444 x 44 x 4/40 = 1953.6
Number System 3√103823 = ? 41 47 44 52 41 47 44 52 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√103823 = 3√47 x 47 x 47 = 47
Number System 84 * 29 + 365 = ? 2436 2801 - 2071 - 2801 2436 2801 - 2071 - 2801 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP - 84 * (30 - 1) + 365= - (84 * 30) + 84 + 365= - 2520 + 449 = - 2071
Number System 3251 + 587 + 369 - ? = 3007 1250 1375 1200 1300 1250 1375 1200 1300 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 4207 - x = 3007 Then, x = 4207 - 3007 = 1200
EXAMIANS