Question

200 gallon tank fills at 3 gallons/minute and loses 2 gallons/minute how long does it take to fill up

Answer 1

it fills at 3 gallons per minute, but loses 2 gallons per minute

3-2 =1, so it fills at 1 gallon per minute

200 gallons at 1 gallon per minute = 200 minutes,

200/60 = 3 hours and 20 minutes