There are two positive integers, one is 3(5+a) and the other o | The Learning EaSEL

There are two positive integers, one is 3(5+a) and the other one is 8b. Ratio of their sum to their difference is 5:1. Find the minimum possible value of a+2b. It is given that 8b is greater than 3(5+a) and both a&b are positive integers.