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11-01-2020
Mathematics

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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?

Respuesta :

rushilsaswade rushilsaswade

11-01-2020

Answer:

9 hours

Step-by-step explanation:

together, 1/of 8 is 4 and 1/2 of 10 is 5 4+5=9

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