Water output for the Stewarts sprinkler was 30l per hour. the water output rate for the Allen

Fantastic news! We've Found the answer you've been seeking!

Question:

Water output for the Stewarts sprinkler was 30l per hour. the water output rate for the Allen family was 40l per hour. the families used their sprinkler for a total of 75 hours, resulting in a total water output of 2650l how long was each sprinkler used