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A logic problem by Javed Siddiqui

Logic Level 1

How many times do the hands of a clock overlap in 24 hours? tell of a minute hand just.

12 times 6 times 24 times

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.

Used and loved by 4 million people

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including olympiad champions, researchers, and professionals.

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by Javed Siddiqui

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