Question 940781


an item and it cost £{{{50}}} 

 then sell it for £{{{80}}} 

profit percentage is {{{x}}}% of £{{{50}}} and you add it to £{{{50}}} to get £{{{80}}}

{{{x}}}% of £{{{50}} is {{{(x/cross(100)2)cross(50)=x(1/2)=0.5x}}} of £{{{50}}

then write your equation:

{{{0.5x=80}}}...solve for {{{x}}}

{{{0.5x=80-50}}}

{{{0.5x=30}}}

{{{x=30/0.5}}}

{{{x=300/5}}}

{{{x=60}}}%

so, {{{60}}}% of £{{{50}}} is £{{{50*0.60=30}}} profit

and £{{{50+30=80}}}