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Question : If the price of salt decreases by 20%, then by what percentage should consumption be increased to keep the expenditure same?

Option 1: 26%

Option 2: 27%

Option 3: 25%

Option 4: 24%


Team Careers360 1st Jan, 2024
Answer (1)
Team Careers360 12th Jan, 2024

Correct Answer: 25%


Solution : Let the price of 100 units of salt be Rs. 100.
Current price of salt after 20% depreciation = (100 – 20% of 100) = Rs. 80
Amount of salt that can be bought in Rs 100 = $\frac{100}{80}\times100$ = 125 units
Percentage increase in consumption
= $\frac{\text{New consumption – Old consumption}}{\text{Old consumption}}\times 100$
= $\frac{125-100}{100}\times 100$
= $25\%$
Hence, the correct answer is 25%.

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