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Q.20 When the petrol was 745 per litre,...

Q.20 When the petrol was 745 per litre, I used 500 litres in a year. The price of petrol rose by 20% so I reduced my yearly consumption by 20%. Find: (1) the new price of a litre of petrol.(ii) my reduced annual petrol consumption.(iii) how much more (or less) my petrol bill isfor the year.

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