Question
A man got a discount of 10% on sugar at Big Mart which
allowed him to buy 15 kg more for ₹135/-. What is the discounted price and the original price of the sugar per kg?Solution
Due to x% increase/decrease in the price, the person purchased ‘y’ kg less/more in Rs. ‘a’ So, we can say that x% of a is the price of y kg. 15 kg =135 Rs 1 kg =9Rs. discounted price=9×10/100 =9×100/10 =90paise. Let Original price=10x Discounted prices =10x×90/100=9x ATQ- 135/9x -135/10x =15 10x-9x =10x2 10x =1 Rs.
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