Question 116

If the price of apple increases from Rs 80/kg to Rs 100/kg, then by what percentage a person should decrease the consumption of apple so that his expenditure remains same?

Solution

Let a person initially consumes 10 kg apples

Expenditure on original price = $$80\times10=Rs.$$ $$800$$

New price = Rs. 100/kg

=> New consumption = $$\frac{800}{100}=8$$ kg

$$\therefore$$ % decrease in consumption = $$\frac{(10-8)}{10}\times100=20\%$$

=> Ans - (C)

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