The Kim family and the Washington family each used their sprinklers last summer. The water output rate for the Kim family's sprinkler was 15L per hour. The water output rate for the Washington family's sprinkler was 40L per hour. The families used their sprinklers for a combined total of 65 hours, resulting in a total water output of 1850L. How long was each sprinkler used?
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Home » Mathematics » The Kim family and the Washington family each used their sprinklers last summer. The water output rate for the Kim family's sprinkler was 15L per hour. The water output rate for the Washington family's sprinkler was 40L per hour.