Number System On converting the following base-2 numeral in base ten, 1101101, we get 106 107 108 109 106 107 108 109 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 109
Number System The average of five consecutive even numbers A, B, C, D and E is 42. What is the product of B and D ? 4589 2476 3289 1760 4589 2476 3289 1760 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A + B + C + D + E/5 = 42∴ C = 42, ∴ B = 40, ∴ D = 44∴ B x D = 40 x 44 = 1760
Number System If the fraction 8/6, 7/5, 18/13, 9/5 and 7/11 are arranged in descending order of their values, which one will be the second ? 1/9 3/4 7/5 2/7 1/9 3/4 7/5 2/7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8/6 = 1. 333, 7/5 = 1.4, 18/13 = 1.3849/5 = 1.8 and 7/11 = 0.636Therefore, Descending order is 9/5 > 7/5 > 18/13 > 8/6 > 7/11Therefore Second fraction is 7/5
Number System 3√68921 = ? 21 31 41 51 21 31 41 51 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√68921= 3√41 x 41 x 41= 41
Number System If the average of two numbers is 88.5 and one number is 5.5 less than the average. Find out the next number. 91 86 94 97 91 86 94 97 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 94
Number System If x + y = 61 and xy = 888, What is the value of x²+ y² ? 1975 1945 1955 1965 1975 1945 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
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