Bunuel wrote:
Marcy bought one pair of jeans at 70% off and one blouse at 40% off. If she paid $12 more for the blouse than for the jeans, and she spent a total of $84, what was the original price of the jeans?
(A) 76
(B) 96
(C) 100
(D) 120
(E) 124
Let the price of the Jeans be\(J\) and the blouse be\(B\)
Since Marcy bought the jeans at 70% discount, she paid\(0.3J\) for the pair of jeans.
Similarly, Marcy paid\(0.6B\) for the blouse as she bought the blouse at 40% off.
As Marcy paid $12 more for the blouse, the cost
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