Question

A grocer sells rice at a profit of 10% and uses a weight which is 20% less.find his total percentage gain

Answer 1

Profit1, x (by selling rice) = 10%

Seller user 20% less weight, we will find profit2 for this.

Let us assume if he has to sell 1000g or 1 kg rice , he will use 20% less weight

i.e. (100-20)% of 1000g = 80% of 1000g = 800g

Profit2 , y=  =  25%

Total profit gained by seller  = successive profit by two profits

                                                        = x + y +

                                                        = 10 +25 +

                                                        = 35 + 2.5

                                                        = 37.5 %