1.

Car A travels x km for every litre of petrol, while car B travels (x+5) km for every litre of petrol. Both the cars cover a distance of 400 km each. If car A uses 4 litres of petrol more than car B in covering 400 km. Write down an equation in x and determine the number of litres of petrol used by car B for the journey.

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ANSWER :16 LITRE


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