If the cost of 2 3/4 litres of petrol is 70 2/5, find the cost of 1 litre of petrol.
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Given that, cost of 2 3/4 litres of petrol= 70 2/5. Cost of one litre of petrol = ? Here, 2 3/4 can be written as (4(2))+3 /4=11/4. And 70 2/5 can be written as (70(5))+2/5=352/5. Cost of 1 litre of petrol = (11/4)/(352/5) = 5/128. So, cost of one litre of petrol = 5/128. Problem solved
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