Number System A certain number of two digits is three times the sum of its digits. If 45 be added to it, the digits are reversed. The number is: 24 30 27 22 24 30 27 22 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 27
Number System If the three fourth of a number is subtracted from the number; the value so, obtained is 163. What is that number ? 692 678 689 652 692 678 689 652 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number x (1 - 3/4) = 163∴ Number = 163 x 4 = 652
Number System What is the difference between the largest and the smallest number written with 7, 7, 0, 7? 6993 6093 6893 693 6993 6093 6893 693 ANSWER DOWNLOAD EXAMIANS APP
Number System The product of two consecutive position odd numbers is 6723. What is the smaller number? 71 74 79 83 71 74 79 83 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP n x (n + 2) = 6723= n² + 2n - 6723 = 0= n² + 83n - 81n - 6723 = 0= n(n + 83) - 81 (n + 83) = 0Therefore, (n - 81) (n + 83) = 0Therefore, n = 81, n + 2 = 83
Number System 106 * 106 - 94 * 94 = ? 2400 2000 1906 1904 2400 2000 1906 1904 ANSWER DOWNLOAD EXAMIANS APP
Number System 3√103823 = ? 41 47 52 44 41 47 52 44 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√103823 = 3√47 x 47 x 47 = 47
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