If the price of petrol increases from ₹90 to ₹110, by what percentage does a person have to decrease his consumption so that his expenditure on petrol remains the same (approximate to two decimals)?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 18.18%.
Decrease in consumption =
= 200/11 = 18.18%