hi,
the table acctual price is 330.
so after getting a profit of rupees 30, the selling price is =360.
now, suppose marks price is x.
now after giving 10% discount on marked price the selling price is =(x-(x*10/100))= 9x/100.
now this price is equal to actual selling price . that is 360.
solve the below equation you will get the answer,
9x/10=360,
x=400
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