Misty bought 3 CDs. The country music CD cost $12. The rock music CD cost 2/3 as much as the country music CD. The platinum edit
ion CD cost twice as much as the rock CD. What was the cost of the 3 CDs? What is the hidden question and what is the solution?
1 answer:
Country music : $ 12
rock music : 2/3 * 12 = 24/3 = $ 8
platinum : 2 * 8 = $ 16
the total cost is : (12 + 8 + 16) = $ 36
the hidden question ??
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