Number System If x + y = 61 and xy = 888, What is the value of x²+ y² ? 1945 1975 1955 1965 1945 1975 1955 1965 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Because (x + y)² = x² + y² + 2xy∴ x² + y² = (x + y)² - 2xy∴ x² + y² = (61)² - 2 x 888= 3721 - 1776 = 1945
Number System Three seventh of a number is 12 more than 40% of that number. What will be the 60% of that number? 210 126 248 148 210 126 248 148 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/7 x – 40/100 x = 12x = 35 * 1235 * 12 * 60/100 = 252/2 = 126
Number System (4300731) - ? = 2535618 1765113 1865113 1675123 1775123 1765113 1865113 1675123 1775123 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 4300731 - x = 2535618Then, x = 4300731 - 2535618 = 1765113
Number System If the difference between the squares of two consecutive numbers is 47, what is the smaller number ? 26 23 25 24 26 23 25 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be (x + 1) and x.Therefore, (x + 1)² - x² = 47x² + 2x + 1 - x² = 472x + 1 = 47Therefore, x = 46/2 = 23
Number System Find out the smallest possible number which will be divisible by 1122 as well as 153. 2366 3366 4366 1366 2366 3366 4366 1366 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3366
Number System 63.602 + 153.756 + 94.754 - 84.321 - 122.204 = ? 140.587 142.587 143.587 141.587 140.587 142.587 143.587 141.587 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 312.112 - 170.525 = 141.587
EXAMIANS