Question

joy bought pens at ruppe 120 a dozen . he sold it for rupee 15 each .what is profit percent ?????​

Answer 1

he got a profit if Rs3 per pen he sold

profit from 12 such pens is 3X12=36

profit=3/12X100%

=25%

Answer 2

He bought
12 pens for 120rupees :

12 Pen = ₹120

1 Pen = ₹120/12 = ₹10

He sold:

1 Pen = ₹15

Profit On 1 Pen

S.P - C.P

15 - 10 = ₹5

Therefore Profit on 12 pens

₹5 × 12 = ₹60

Profit Percent :

(Profit ×100) / CP

60 × 100 / 120

= 50%