Number System If x + y = 61 and xy = 888, What is the value of x²+ y² ? 1945 1975 1965 1955 1945 1975 1965 1955 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 Sum of two numbers is 80. Greater number exceeds by 5 from four times of the smaller. Find the numbers? 65, 15 60, 20 64, 16 62, 18 65, 15 60, 20 64, 16 62, 18 ANSWER DOWNLOAD EXAMIANS APP
Number System If HKUJ means FISH, what does UVCD mean ? STAM STAB STAR STAK STAM STAB STAR STAK ANSWER EXPLANATION DOWNLOAD EXAMIANS APP STAB
Number System If the product of two successive positive integers is 4692, what is the smaller number ? 64 68 66 70 64 68 66 70 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∵ 68 x 69 = 4692
Number System The square root of 0.0081 is: 0.09 0.91 0.9 0.009 0.09 0.91 0.9 0.009 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.09
Number System The simplest form of 1.5 : 2.5 is : 3 : 5 13 : 11 17 : 19 5 : 7 3 : 5 13 : 11 17 : 19 5 : 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3 : 5
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