Answer: Percentage that Wednesday's sale price would be 80%of the original price for the pants.
Explanation:
Let the original price of pants be 'x'.
Discount rate on Tuesday = 15%
Discount rate on Wednesday = 5%
So, total discount rate = 15% +5% = 20%
So, Amount of discount would be

So, Price of pants on Wednesday becomes

So, Percentage that Wednesday's sale price would be
of the original price for the pants.