Question

anuj buys 15 pens at rupees 8 each and sells all of them at rupees 150.find the gain percent for each pen.

Answer 1

1 pen=8rs
15 pens =15×8=120 rs
cp =120
sp=150
profit =sp-cp
profit =150-120
proft=30
profit% = profit /cp ×100
=30/120 ×100
=1/4 ×100
=25% is gain or profit%