Number System 2/11 of 3/7 of 8/13 of 12012 = ? 449 576 321 241 449 576 321 241 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 2 x 3 x 8 x 12012/11 x 7 x 13 = 576
Number System 64% of 2650+40% 0f 320=? 1824 1578 2096 1247 1824 1578 2096 1247 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1824
Number System One half of a two digit number exceeds its one third by 6. What is the sum of the digits of the number? 9 7 3 5 9 7 3 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x/2 – x/3 = 6=> x =63 + 6 = 9
Number System What least number shall be added to 4700 to make it a perfect square ? 61 71 81 91 61 71 81 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (69)² = 4761 and (68)² = 4624Clerly 4624 < 4700 < 4761So 61 should be added to make 4700 a perfect square.
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
EXAMIANS