Number System 3√68921 = ? 51 21 41 31 51 21 41 31 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√68921= 3√41 x 41 x 41= 41
Number System The difference between a number and its three-fifth is 50. What is the number? None of these 75 125 100 None of these 75 125 100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x - 3/5 x = 50 => 2/5 x = 50x = (50 * 5)/2 = 125.
Number System The sum of two numbers is 165 and the difference between them is 9. What is the average of these two numbers ? 85.5 84.5 82.5 83.5 85.5 84.5 82.5 83.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 165x - y = 92x = 174 ∴ x = 87 and y = 78∴ x + y/2 = 165/2 = 82.5
Number System On converting the following base-2 numeral in base ten, 1101101, we get 108 106 109 107 108 106 109 107 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 109
Number System If a number is subtracted from its square we get 272. Find the number? 24 14 17 22 24 14 17 22 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 – x = 272 => x =17
Number System In a pair of fractions, fraction A is twice the fraction B and the product of two fractions is 2/25. What is the value of fraction A? 1/25 Data inadequate 1/5 2/5 1/25 Data inadequate 1/5 2/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A = 2B => B = 1/2 A, so, AB = 2/25 1/2 A2 = 2/25A2 = 4/25 A = 2/5
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