Question 1135350

let your age be {{{x}}} and uncle's age {{{y}}}

if uncle is triple your age at present, we have

{{{y=3x}}}.......eq.1

 in {{{15}}} years from now, he will only be double your age,and we have

{{{y+15=2(x+15)}}}.......eq.2...substitute {{{y}}} from eq.1

{{{3x+15=2(x+15)}}}....solve for {{{x}}}

{{{3x+15=2x+30}}}

{{{3x-2x=30-15}}}

{{{x=15}}}-> your age now

{{{y=3*15=45}}}->uncle's age


so, in {{{15}}} years you will be {{{30}}} and your uncle will be {{{60}}}, means double your age