A reduction of 20% in the price of wheat enables a person to buy 3.5 kg more wheat for ₹ 770. The original price of rice is?

₹ 55 per kg
₹ 45 per kg
₹ 65 per kg
₹ 37 per kg

Correct Answer: ₹ 55 per kg

Explanation:

Here, R = 20%, A = 3.5 kg and P = ₹ 770
According to the formula ,
Actual price of rice = [PR /(100 - R)] A
= [(20 x 770) / (100 - 20)] x 3.5
= [(20 x 770) / (80 x 3.5)
= ₹ 55

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