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How many times will you get lucky?

Discrete Mathematics Level 2

How many times does the number "\(7\)" show in the list of numbers from \(1\) to \(1000\)?

\[300\] \[197\] \[200\] \[100\]

Excel in math and science

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It's hard to learn from lectures and videos

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Our wiki is made for math and science

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examples, and problems from the community.

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including olympiad champions, researchers, and professionals.

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by Jeremy Bansil

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