Question 1205022
Spend {{{1/10}}} on transport and spent {{{2/10}}} on food, so at this point
still possesss {{{7/10}}} of salary.


But he gave half his salaray, {{{5/10}}} of w, to parents.

Still he then had  {{{7/10-5/10=2/10=1/5}}};
{{{w(1/5)=480}}}--------he kept 480 for himself.


{{{highlight_green(w=2400)}}}



(a) Fraction of salary he saved
{{{480/2400}}}

{{{48/240}}}

{{{(24*2)/(24*10)}}}

{{{highlight(1/5)}}}


(c) How much spent food & transport

{{{(1/10+2/10)w}}}

{{{3w/10}}}

{{{(3/10)(2400)}}}

{{{3*240}}}

{{{highlight(720)}}}