Question

a trader buys pens at $44 a dozen and sells them at $20 each. Find his profit if he sells 60 pens.

Answer 1

60 pens/ A dozen pens= 5 packs of a dozen pens
$44*5= $220 total spent
$20*60=$1200 total money a trader gets
$1200-$220=$980 in profits.

Hope I didn't mess up for your sake.