7th grade math question. Help please
7th grade math bites!
3 picnickers came upon a pile of watermelons. The first picnicker took half of all the watermelons plus a half of a watermelon. The second picnicker took half of what was left plus a half of a watermelon. The third picnicker took half of what was left plus a half a watermelon. There were 15 watermelons left. How many watermelons were in the original pile?
122.5?
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