Question
Samant bought a microwave oven and paid 10% less than its original price. He sold it with the 30% profit on the price he had paid. What percentage of profit did samant earn on the original price?
Answer: Option A
 - Let the original price = 100
Then, C.P = Rs. 90, S.P = 130% of Rs.90 = Rs.(130/100 x 90) = 117.
∴ required percentage = (117-100)% =17%
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 - Let the original price = 100
Then, C.P = Rs. 90, S.P = 130% of Rs.90 = Rs.(130/100 x 90) = 117.
∴ required percentage = (117-100)% =17%
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