If m is the price marked on a pair of jeans , d is the discount on it, and s is the selling price (after discount),write an equations involving m,d and s.

Given: Price of pair of jeans  = Rs mDiscount allowed in it = d%Price after discount=m-m×d100=m-md100=100m-md100=m100-d100So selling price s=m100-d100s=m100-d100100s=m100-d

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