Question 898974
let's assume age of brian and ryan as x'and 'y'resply.from information given,

x/y=2/3 or y=1.5 x

in 4 years, (x+4)/(y+4) will be 5/7. Solving for x, we get

(x+4)/(1.5x+4)=5/7  or 7x+28= 7.5x + 20 i.e. x=16.  Hence y is 24.