Question

SP=100 CP=80 .FIND GAIN PERSENT​

Answer 1

Answer:

Profit= 100-80= ₹20

$profit\% = \frac{20}{80} \times 100 \\ \\ = \frac{200}{8} \\ \\ = 25\%$

Answer 2

We know, selling price = cost price + profit
Now,
Selling price = cost price + profit %/100 × cost price
100 = 80 + Profit %/100 x 80
100-80/80 = Profit %/100
20/80 = Profit %/100
100/4 = Profit %
25 = Profit % or Gain %