Question

The student buys 10 pens for rs 90 and sold then at rs 12 each.find his profit percent

Answer 1

Answer:40%

Step-by-step explanation:

Cost of 10 pen= 90

Cost of 10 pen when he sell=120

Profit =120-90=30rs

Profit%=120×30/90

=40%

Answer 2

Step-by-step explanation:

he buys

10 pens = 90 rs

then one pen cost=9rs

then sold at 12 rs each.

therefore, total ly sold all 10 pens at rs120

profit=selling price - buying price

=120-90

=30

%= (30/90)*100

=100/3=33.33%