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# Children, Dictionaries, and Encyclopedias

Pro Problems > Math > Algebra > Equations > Word Problems

## Children, Dictionaries, and Encyclopedias

Three children can read five encyclopedias in fifteen hours. Four children can read two dictionaries in ten hours.  How many children are needed to read thirty encyclopedias and twenty-two and a half dictionaries in 90 hours?

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Problem by BogusBoy

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