Two pumps

The first pump fills the tank in 24 hours, and the second pump fills the tank in another 40 hours. How long will it take to fill the tank if it operates both pumps simultaneously?

Final Answer:

x =  15 h

Step-by-step explanation:

h=241+401=1205+1203=1205+3=1208=1510.0667  x h=1  x=1/h=1/151=1:151=1 115=11 15=115=15 h



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