# Janitor a can clean all the classrooms at strawberry school in 8 hours. janitor b can clean the same classrooms in 10 hours.

###### Question:

Janitor a can clean all the classrooms at strawberry school in 8 hours. janitor b can clean the same classrooms in 10 hours. how long would it take janitor a and janitor b
working together, to clean all the classrooms?

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