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Cocks and Cows Confuse too ?

Algebra Level 2

A man had some hens and cows. If the number of heads is 48 and number of feet equals 140, then the number of hens is ???

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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, interactive explorations.

Used and loved by over 6 million people

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including olympiad champions, researchers, and professionals.

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by Anish Harsha

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