Explanation:
470 miles on 22 gallons.
that is
470/22 = 235/11 = 21 4/11 miles per gallon.
now we have 54 gallons and can drive
235×54/11 = 12,690/11 = 1,153 7/11 miles =
= 1,153.636363... miles ≈ 1,154 miles
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