Monica paid less than Rachel. Monica paid 4.5$ less than Rachel
Solution:
Given that,
Monica bought a dress at 20 % off
Original price of dress = 60$
And Rachel bought same dress for 70$ at 25% off
Let us calculate the selling price of dress bought by both Monica and Rachel to find out who paid less
In case of Monica:
Original price = 60
discount % = 20 %
selling price = original price - 20 % of original price
selling price = 60 - 20% of 60


Hence Monica paid 48$
In case of Rachel:
Original price = 70
discount % = 25 %
selling price = original price - 25 % of original price
selling price = 70 - 25% of 70

Thus Rachel paid 52.5 $
When comparing the amount paid by Monica and Rachel, we observe that monica paid less
Difference between monica and rachel amount = 52.5 - 48 = 4.5
Thus monica paid 4.5$ less than rachel