In a certain shop, it stocked 90 pieces of cup at 7200 yen.
They sold at the list price of 150 yen per one piece, but some remained unsold.
The profit was 3000 yen.
Find the number of the cut remained unsold.
Answer
22 pieces
Solution
7200 + 3000 = 10200
The number of the cup sold is 10200 / 150 = 68 pieces.
Thus the number of unsold is 90 - 68 = 22 pieces.
