A four-cylinder, two-stroke cycle petrol engine develops \(40 \mathrm{~kW}\) at \(1500 \mathrm{rpm}\). The mean effective pressure in each cylinder is 7.5 bar. The mechanical efficiency is \(85 \%\) Determine the cylinder bore and piston stroke, if stroke to bore ratio is 1.5. Also determine the fuel consumption if brake thermal efficiency is \(30 \%\). Take calorific value of petrol as \(44 \mathrm{MJ} / \mathrm{kg}\).