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A reduction of 20% in the price of rice enables a person to buy 3.5 kg more rice for Rs. 385. The original price of rice per kg is ?

Rs. 20

Rs. 22.50

Rs. 25

Rs. 27.50

Explanation:

Let price be x new price is x - 20%of x = 0.8x
Old rice quantity she buy is 385/x
New rice quantity she can purchase is 385/(0.8x)
385/(0.8x) - 385/x = 3.5
Solve it and you will get x = 27.5

By: MIRZA SADDAM HUSSAIN

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