Question 973031
.
x=number of pens
{{{(1/3)x-(1/5)x=40}}}
{{{5x/15-3x/15=600/15}}}
{{{5x-3x=600}}}
{{{2x=600}}}
{{{x=300}}} Jenna bought 300 pens.
1/3(300)=100 Sister received 100 pens.
1/5(300)=60 Brother received 60 pens.(40 fewer than sister)