Number System Which is the smallest fractions among the following ? 13/15 27/31 15/19 11/13 13/15 27/31 15/19 11/13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 11/13 = 0.8461,13/15 = 0.8666,27/31 = 0.87,15/19 = 0.789
Number System The product of two natural numbers is 17. Then, the sum of the reciprocals of their squares is: 290/289 289/290 289 1/289 290/289 289/290 289 1/289 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be a and b. Then,ab = 17, a = 1 and b = 17So, 1/a2 + 1/b2 = (a2 + b2)/a2 b2 = (12 + 172)/(1 * 17)2 = 290/289
Number System Find out the smallest possible number which will be divisible by 1122 as well as 153. 3366 4366 1366 2366 3366 4366 1366 2366 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3366
Number System If one-seventh of a number is 55 then 40% of that number = ? 154 147 163 171 154 147 163 171 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x , Therefore, x/7 = 55Therefore, x = 55 x 7 = 385Therefore, 49% of 385 = 154
Number System (12.11)2 + (?)2 = 732.2921 24.2 14.2 20.2 17.2 24.2 14.2 20.2 17.2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 24.2
Number System If (47)² is added to the square of a number the answer thus obtained is 2290. What is the number ? 9 10 7 8 9 10 7 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x Therefore, x² + (47)² = 2290Therefore, x² = 2290 - 2209 = 81Therefore, x = 9
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