An aeroplane weighing `63,000 kg` flies up from sea level to a height of `8000` meter. Its engine run with pure normal octane `(C_(8)H_(18))` has a `30%` efficiency. Calculate the fuel cost of the flight if octane sells at `Rs. 3` per litre. Given density of octane `=0.705 g mL^(-1)`, heat of combustion of octane `=1300 kcal mol^(-1) (g=981 m//s^(2))`

An aeroplane weighing `63,000 kg` flies up from sea level to a height

1.	An aeroplane weighing `63,000 kg` flies up from sea level to a height of `8000` meter. Its engine run with pure normal octane `(C_(8)H_(18))` has a `30%` efficiency. Calculate the fuel cost of the flight if octane sells at `Rs. 3` per litre. Given density of octane `=0.705 g mL^(-1)`, heat of combustion of octane `=1300 kcal mol^(-1) (g=981 m//s^(2))`
Answer» Correct Answer - `1472.4 Rs`

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