Number System 217 * 217 + 183 * 183 = ? 79698 80698 81268 80578 79698 80698 81268 80578 ANSWER DOWNLOAD EXAMIANS APP
Number System When (21)² is subtracted from the square of a number the answer obtained is 1584. What is the number ? 45 55 65 35 45 55 65 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x² - (21)² = 1584= x² - 441 = 1584 = x² = 1584 + 441 = 2025∴ x = √2025 = 45
Number System (4300731) - ? = 2535618 1675123 1865113 1765113 1775123 1675123 1865113 1765113 1775123 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 4300731 - x = 2535618Then, x = 4300731 - 2535618 = 1765113
Number System The product of two consecutive position odd numbers is 6723. What is the smaller number? 74 83 71 79 74 83 71 79 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 Difference between two numbers is 5, six times of the smaller lacks by 6 from the four times of the greater. Find the numbers? 12, 9 12, 7 10, 5 11, 6 12, 9 12, 7 10, 5 11, 6 ANSWER DOWNLOAD EXAMIANS APP
Number System When 732 is subtracted form the square of a number, the answer that is obtained is 5280. What is the number? 103 97 101 99 103 97 101 99 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 - 732 = 5280 x2 = 5280 + (70+3)2 = 5280 + 4900 + 420 + 9 = 10609= 10000 + 2(100)(3) + 32 = (100 + 3)2x = 100 + 3 = 103.
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