Number System The sum of the digits of a two digit number is 12. If the new number formed by reversing the digits is greater than the original number by 54, then what will be the original number? 59 39 49 69 59 39 49 69 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 39
Number System Find the greatest number which leaves the same remainder when it divides 25, 57 and 105. 8 18 12 16 8 18 12 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 If R2 = S3 = K, where R, S and K are integers. Find the smallest positive integral value of K. (Greater than 1) 88 75 64 54 88 75 64 54 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 64
Number System What is the least number, which is perfect square but contains 2700 as its factor? 2700 10800 1800 5400 2700 10800 1800 5400 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 900 * 3 * 3 = 8100
Number System Which number should replace question mark (?) in the following equation ? ?/342 = 38/? 118 112 116 114 118 112 116 114 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 342 x 38Therefore, ? = √342 x 38 = √38 x 9 x 38 = 38 x 3 = 114
Number System What is the sum of all the prime numbers from 20 to 40? 118 117 119 120 118 117 119 120 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 23 + 29 + 31 + 37 = 120
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