Number System Three numbers which are co-prime to one another are such that the product of the first two 551 and that of the last two is 1073. The sum of the three numbers is 110 74 85 93 110 74 85 93 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 85
Number System 3√68921 = ? 21 41 31 51 21 41 31 51 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√68921= 3√41 x 41 x 41= 41
Number System If A + B = 30 and AB = 94, What is the value of A² + B² ? 712 920 824 625 712 920 824 625 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (A + B)² = (30)² = 900A² + B² + 2AB = 900Therefore, A² + B² = 900 - 2 x 94 = 900 - 188 = 712
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1192 1200 1092 1082 1192 1200 1092 1082 ANSWER DOWNLOAD EXAMIANS APP
Number System A certain number of two digits is three times the sum of its digits. If 45 be added to it, the digits are reversed. The number is: 30 24 22 27 30 24 22 27 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 27
Number System 4.78% of 1255 + 3.24% of 440=0.5% of ? 11849 13849 14849 12849 11849 13849 14849 12849 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.5 x ?/100 = 4.78 x 1255/100 + 3.24 x 440/100= 59.989 + 14.256∴ ? = 74.245 x 100/0.5 = 14849
EXAMIANS