SSC CHSL 4 Aug 2021 Shift 1 Paper

Study the given pie-chart and answer the question that follows. The pie-chart represents the consumption of fuel (in million litres) by various modes of transport of a country X in the year 2015. The total consumption of fuel by various modes of transport of the country is 800 million litres. (The data shown here is only for mathematical exercise. They do not represent the actual figure of the country).
Consumption of fuel (in million litres) by various modes of transport of a country X in the year 2015 To obtain fuel, energy is required to run the machinery, which is to be produced by burning coal.
If 1 tonne of coal is burnt to produce $0.4$ million litres of oil, then approximately what is the requirement of coal (in tonnes) for the Trains sector?