A RETAILER BUYS A SEWING MACHINE AT A DISCOUNT AT 15% AND SELLS IT FOR RS 1955. THE DISCOUNT IS .....
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The retailer sold the machine at Rs. 1955 (after making a profit of 15% ).
We know Cost + Profit = Selling price.
X+15% of X = 1955
115% X = 1955 ( Since X = 100% X +15% X = 115% X)
X = 1955/115 *100
X = 1700 ( Cost price)
Hence 1700 was the price at which he bought the machine after 15% discount.
Original Cost - Discount = Purchase price
Y- 15% Y = 1700 ( Y is the price at which the whole seller was selling before the discount)
85% Y = 1700
Y = 1700/85 *100
Y = 2000
Hence discount was 2000 - 1700 = 300 rupees
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