1 tank of propane holds 5 gallons and will last 12 hours. how many gallons of propane is needed for 240 hours.
2 answers:
5 gallons x gallons
------------- = ----------------
12 hours 240 hours
using cross products
5 * 240 = 12 * x
1200 = 12 x
divide each side by 12
1200/12 = 12x/12
100 =x
You will need 100 gallons
If 5 gallons lasts 12 hours we can find the rate
12/5 = 2.4
This is how long each gallon lasts divide this into 240
240/2.4 = 100
100 gallons of propane will be needed.
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