Question

The price, P, of a sweater was discounted by 10% in

February. Because the sweater did not sell by the end of

the winter season, it was discounted by another 20% in

March. In terms of P, what was the price of the sweater

after the discount in March?

Answer 1

In terms of P, the price of the sweater after the discount is 0.72P.

Explanation:

Since the price P would represent 100% and the price was discounted by 10%, you can calculate 10% of 100% and subtract that amount, which would be:

100*10%=10

100-10=90%

This means that the price paid would be 90% of P. Then, the statement says that the price was discounted by another 20%. So, you have to calculate 20% of the price and subtract that amount from the price:

90*20%=18

90-18=72%

According to this, this means that in terms of P, the price of the sweater after the discount is 0.72P.