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Apple eating

Level pending

I ate 51 apples in all. In Tuesday i ate 49 more than Wednesday. what is the amount for Tuesday .

52 12 50 1

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations,
examples, and problems from the community.

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including olympiad champions, researchers, and professionals.

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by tom young

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