Number System (800 / 64) * (1296 / 36) = ? 500 420 None of these 460 500 420 None of these 460 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Exp.= 800/64 * 1296/36 = 12.5 * 36 = 450
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: None of these 20 30 40 None of these 20 30 40 ANSWER DOWNLOAD EXAMIANS APP
Number System Find the greatest number which leaves the same remainder when it divides 25, 57 and 105. 8 12 18 16 8 12 18 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 105 - 57 = 4857 - 25 = 32105 - 25 = 80The H.C.F of 32, 48 and 80 is 16.
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1092 1082 1192 1200 1092 1082 1192 1200 ANSWER DOWNLOAD EXAMIANS APP
Number System The difference between a number and its three-fifth is 50. What is the number? 75 None of these 100 125 75 None of these 100 125 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x - 3/5 x = 50 => 2/5 x = 50x = (50 * 5)/2 = 125.
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 ? 3/4 1/9 7/5 2/7 3/4 1/9 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
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