Question 1123460
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Read what you have written before you submit your questions....<br>
(1) He sold 2/3 of them for $2.50, and made a profit of $200?  He must have sold the other 1/3 at a ridiculously high price!<br>
(2) When you say he is allowed to mark up the price "UP TO 50%", we don't know what percent markup he used; so the question can't be answered.