a shop keeper allows 25% discount on Mark price and earn 30% profit if he gets rs 90 as profit find the amount of the discount
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Profit = 30% = 90 Rs.
So cost price - 90/30*100 = 300
And Selling Price = 300+90 = 390
Discount = 25% of marked price
So sales price = (100-25)% = 75 % of marked price
therefore,
390 = 75% of marked price
marked price = 390/75*1 00 = 520 Rs.
Discount = 25% of marked price
Discount = 25/100*520 = 130 Rs.
So cost price - 90/30*100 = 300
And Selling Price = 300+90 = 390
Discount = 25% of marked price
So sales price = (100-25)% = 75 % of marked price
therefore,
390 = 75% of marked price
marked price = 390/75*1 00 = 520 Rs.
Discount = 25% of marked price
Discount = 25/100*520 = 130 Rs.
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