Question: A store sells a jacket for $90 after applying a 10% discount. What was the original price?
(a) $95
(b) $100
(c) $105
(d) $110
Solution:
Let the original price be 𝑥.
Discount = 10% of 𝑥, and the selling price = $90.
Selling price = x− 10⁄100× x=90.
0.90x=90.
x=90/0.90=100.
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