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Allegation is best approach to solve such kind of Questions 20% Oil = 1/5 Apply allegation 5 = Total 1 = Oil 4 =Left matter He want earn 20% profit on total Total = 20 + 5 = 25 × 6/5 = 30 100 = 70 + 30 100 Rs/kg Oil. He want earn 20% profit on total Total = 20 + 5 = 25 × 6/5 = 30 100 = 70 + 30 100 Rs/kg Oil.
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