Question

Due to wide fluctuations in petrol prices ,the prices rose in one year by 30% and then came down next year by 15% .what was the percentage in price change in price of petrol when compared to the original place?...
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Answer 1

Answer:

10.5% increase

Step-by-step explanation:

Let the original price of petrol be ₹100.

Increase in price = 30% = 30/100 × 100 = ₹30

Price after increasing = ₹100 + ₹30 = ₹130

Decrease in price = 15% = 15/100 × 130 = ₹19.50

Price after decreasing = ₹130 - ₹19.50 = ₹110.50

Net Increase in price = ₹110.50 - ₹100 = ₹10.50

Percentage increase = 10.50/100 × 100 = 10.5%

Answer 2

10.5% increase is the right answer

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