By selling a T.V. for ₹ 8000, a shopkeeper loses 20% of his cost. If he sells it for ₹ 11,000, what profit or loss would be there for him(7th class math)

By selling a T.V. for ₹ 8000, a shopkeeper loses 20% of his cost. If he sells it for ₹ 11,000, what profit or loss would be there for him(7th class math)

solution;Given Selling price(S P) of T V = 8000

                                                      Loss% = 20 %

 Let cost Price of T V = 100

 then, Loss Rs. = 20% of 100

                         = 20/100 X 100

                         = 20 Rs.

S P of T V = Rs.(100 - 20)

                  = Rs.80

 then C P of T V = 100/80 X 8000

                           = 10000 Rs.

 According to question,

If he sells it for Rs.11000 then Profit.

        Profit = (11,000 - 10,000)Rs.

                  = 1000 Rs. 

Therefore profit Rs. 1000.