An oil tank contains 220.2 gallons of oil..

Question

An oil tank contains 220.2 gallons of oil. Whenever the amount of oil drops below 90 gallons, an alarm sounds. If 145.3 gallons are pumped into a delivery truck, how many gallons must be pumped back into the tank in order to shut off the alarm?

Answer 1

  220.2

 -145.3

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    74.9 gallons currently.

 

  90.0

 -74.9

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  15.1 gallons are needed to shut off the alarm.