The Simmons family and the Reed family each used their sprinklers last summer. The water output rate for the Simmons family's sprinkler was35L per hour. The water output rate for the Reed family's sprinkler was25L per hour. The families used their sprinklers for a combined total of60hours, resulting in a total water output of1900L .How long was each sprinkler used?

Simmons family=

reed family=