An oil tank has a capacity of 45 gallons. At the beginning of October it is 80% full. At the end of October it is 1/3 full. How many gallons of oil were used in October?

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19-05-2014
Mathematics

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An oil tank has a capacity of 45 gallons. At the beginning of October it is 80% full. At the end of October it is 1/3 full. How many gallons of oil were used in October?

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soniaagarwal09 soniaagarwal09 · Answer 1 · 2014-05-19T13:49:38-04:00

soniaagarwal09 soniaagarwal09

19-05-2014

Capacity of the tank = 45 gallon
At the beginning of Oct., amount of oil in the tank = 450.8 = 36 gallons
At the end of Oct., amount of oil in the tank = 451/3 = 15 gallons
So, amount of oil used during Oct = (36-15) = 21 gallons

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