Q102Long answer
What price should a shopkeeper mark on an article that costs him Rs 600 to gain 20%, after allowing a discount of 10% When an item is on sale, you can save money buying it at less than regular price. The discount is the amount that the regular price is reduced. The sale price is the regular price minus the discount. You can use a proportion or an equation to solve problems involving discount and sale price.
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Direct proportion, 120 km.