1 liter of petrol costs 60 Rs the car can run 121 km using 11 liters of petrol how much does it cost for 143 km

780 Rs

Step-by-step explanation:

Work out how far 1 litre of petrol will take you - we know the car goes 121 km on 11 litres, so 121/ 11 = 11. Therefore the care goes 11km per litre of fuel.Find how many litres of fuel are needed to go 143 km: 143/ 11 = 13, so the car needs 13 litres of fuel.Find how much this costs: we have 13 litres at 60 Rs each. So 13 x 60 = 780 Rs

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The answer is 41.7 because 1.39 times 30 is 41.7