A car can travel 315km on 30 litres of petrol. How far can the car travel if it has 50 litres of petrol in its petrol tank?
A
525km
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B
10.5km
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C
189km
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D
840km
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Solution
The correct option is A525km
Distance covered by the car with 30 litres of fuel= 315 km ⇒ Distance covered by the car with 1 litre of fuel =31530=21/2kms ⇒ Distance covered by the car with 50 litres of fuel =50×21/2=525kms
∴ (C) is the correct option.