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Question
At 12% discount, the selling price of a pen is Rs. 13.20. Find its marked price. Also, find the new selling price of the pen, if it is sold at 5% discount.
Solution
Selling Price of a Pen = 13.20
Discount = 12%
`"Marked Price" = "Selling Price"xx(100/(100-d))`
`= 13.20xx(100/(100-12))`
`=1320/100xx100/88`
Marked Price = ₹ 15
New Discount = 5%
`"Selling Price" = "Marked Price"xx((100-d)/100)`
`= 15xx((100-5)/100)`
`=15xx95/100`
`=3xx19/4`
New Selling Price = ₹ 14.25
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