Maths Olympiad Prep

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Algebra Difficulty 4.6 AIME Find the answer

13. A piece of clothing is marked at 132 yuan. If it is sold at a 90% of the marked price, a profit of 10%10 \% can still be made. Then the purchase price of this piece of clothing is ( ) yuan.

Pick one

Solution

13.D.
132×90%÷(1+10%)=108 (yuan).  132 \times 90\% \div (1+10\%) = 108 \text{ (yuan). }

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