Number System On converting the following base-2 numeral in base ten, 1101101, we get 107 109 106 108 107 109 106 108 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 109
Number System The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is: 30 40 None of these 20 30 40 None of these 20 ANSWER DOWNLOAD EXAMIANS APP
Number System When the square of a number is substracted from (68)², the answer so obtained is 2508. What is the number ? 45 44 46 47 45 44 46 47 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (68)² - x² = 2508Therefore, x² = 4624 = 2508Therefore, x = root of 2116 = 46
Number System (2560 x 1.4) +(7400 x 0.6) =? 9160 8024 6543 7234 9160 8024 6543 7234 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8024
Number System If the difference between the squares of two consecutive numbers is 47, what is the smaller number ? 24 23 26 25 24 23 26 25 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 The difference between the two digit number and the number obtained by interchanging its digits is 54. The difference between the digits is? Nothing can be said. 6 1 4 Nothing can be said. 6 1 4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) – (10y + x) = 54x – y = 6
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