If the price of salt decreases by 20%, then by what percentage should consumption be increased to keep the expenditure same?
Answer & explanation
Correct answer: option 3
ATQ ,
Let Original Price = 100
Price of salt decreases by 20%
Original : New
Price 100 : 80
Consumption 80 : 100
Required Percentage = \(\frac{20}{80}\) × 100 = 25%