Number System The product of two natural numbers is 17. Then, the sum of the reciprocals of their squares is: 1/289 289 290/289 289/290 1/289 289 290/289 289/290 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 50% of 8/15 of 9/4 of 5/3 of 333 = ? 555 666 444 333 555 666 444 333 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 50% of [8x9x5/15x4x3 x 333]= 50% of 666= 333
Number System If the average of two numbers is 88.5 and one number is 5.5 less than the average. Find out the next number. 86 94 91 97 86 94 91 97 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 94
Number System Which is the largest fraction among the following ? 21/23 12/13 24/25 21/22 21/23 12/13 24/25 21/22 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21/23 = 0.913,12/13 = 0.92323/25 = 0.92, 21/22 = 0.9545, 24/25 = 0.96
Number System Sum of two numbers is 80. Greater number exceeds by 5 from four times of the smaller. Find the numbers? 65, 15 60, 20 62, 18 64, 16 65, 15 60, 20 62, 18 64, 16 ANSWER DOWNLOAD EXAMIANS APP
Number System On dividing 2272 as well as 875 by 3-digit number N, we get the same remainder. The sum of the digits of N is: 12 11 13 10 12 11 13 10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Clearly, (2272 - 875) = 1397, is exactly divisible by N.Now. 1397 = 11 * 127The required 3-digit number is 127, the sum of whose digit is 10.
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