At what % above C.P must an article be marked so as to gain 20% after allowing a customer a discount of 10%?
none of the above
Let C.P be Rs 100.then S.P be Rs 120
Let the market price be Rs x
Then 90% of x=120=>90x/100=120=>x= (120*100/90) =133.33
Market price = 33.33% above C.P
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