Two pumps are used to empty a sewage tank. One pump pumps 60 gallons per minute (gpm) and the second pumps 50 gpm. They pumped for 30 minutes. How many total gallons are pumped?

Respuesta :

Total gallons of sewage water pumped is 3300 gallons

Solution:

Given that One pump pumps 60 gallons per minute

The second pumps 50 gallons per minute

To find: total gallons pumped

Total time taken by both the pumps to empty tank = 30 minutes

Rate of pumping the tank by first pump = x = 60 gallons per minute

Rate of pumping the tank by second pump = y = 50 gallons per minute

From given question,

total rate of pumping the sewage tank with first and second pump = x + y

x + y = 60 + 50 = 110 gallons per minute

They together pumped 110 gallons per minute

Given that they pumped for 30 minutes

So for 30 minutes, total gallons pumped is given as:

⇒ 110 x 30 = 3300 gallons

Therefore,  total gallons of sewage water pumped is 3300 gallons