After allowing a discount of 20% on the marked price of a lamp, a trad – InterviewSolution

1.	After allowing a discount of 20% on the marked price of a lamp, a trader loses 10%. By what percentage is the marked price above the cost price?
Answer» After allowing a discount of $20 %$ on the marked price of a lamp, a trader loses $10 %$ . By what percentage is the marked price above the cost price?

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