Question
A reduction of 10% in the price of sugar enables a man to buy 5 kg more for RS 300. Find the reduced price per kg of sugar.
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  Price of y kg = x% of a Price of 1 kg = (x% of a)/y  Reduced price of per kg sugar = (10% of 300)/5 = (10 x 300)/5 = 6 Rs.
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