You have only Tk. 10000. The price of a TV-set is Tk. 11500. Can you buy the TV if you get 10% discount?

Question: You have only Tk. 10000. The price of a TV-set is Tk. 11500. Can you buy the TV if you get 10% discount?

Solution:
In 10% discount,
Original price 100 then discount price 90
Original price 1 then discount price 90/100
Original price 11500 then discount price (90 × 11500)/100
= 10350

The discount price is more than I have.
∴ I can't buy the TV.