Mathematics, 20.03.2020 23:57 ilovecatsomuchlolol

The Moore family and the Bell family each used their sprinklers last summer. The water output rate for the Moore family's sprinkler was 15L per hour. The water output rate for the Bell family's sprinkler was 30L per hour. The families used their sprinklers for a combined total of 75 hours, resulting in a total water output of 1725L. How long was each sprinkler used?

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