Suggestions on solving this ?The salaries of Kate and John are in a ratio 2:3 . If the salary of each is increase by $4000 the new ratio becomes 40:57 .What is Johns salary ?Ans $38,000
Call j John's original salary and k Kate's original salary. It should be clear that it starts with k = (3/2)j.
Then when their salaries increase, you have j + 4000 for John's new salary, and k + 4000 for Kate's original salary. It should then be clear that k + 4000 = (57/40)(j + 4000).
Solve these two equations simultaneously.