b. If 12 litres of oil cost Rs. 4,800. How much will 20 litres of oil cost?
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Answer:
Rs. 8000
Step-by-step explanation:
cost of 12 litres of oil = rs.4800
cost of 1 litre of oil = rs.4800/12
= rs.400
cost of 20 litres of oil = rs.400×20
= rs.8000
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