Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 164 170 162 168 164 170 162 168 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 4/6 x 6/5 x 5/7 = 96∴ x = 96 x 6 x 5 x 7/4 x 6 x 5 = 168
Number System What is the sum of 1 + 2 + 3+ ... + 27 ? 396 378 382 343 396 378 382 343 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Sum = 27 x (27 + 1)/2= 27 x 28/2= 27 x 14= 378
Number System 486+32×25—59=? 528 582 567 596 528 582 567 596 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 528
Number System 3√68921 = ? 21 31 51 41 21 31 51 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√68921= 3√41 x 41 x 41= 41
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? 6 Nothing can be said. 1 4 6 Nothing can be said. 1 4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) – (10y + x) = 54x – y = 6
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 ? 1/9 2/7 3/4 7/5 1/9 2/7 3/4 7/5 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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