Question : If the price of onion increases from INR 60 per kg to INR 75 per kg, then by what percentage should a household decrease the consumption of onion so that expenditure remains the same?

Option 1: 40%

Option 2: 25%

Option 3: 20%

Option 4: 30%

Question : The price of sugar increases by 15%. By what percentage should the consumption of sugar be decreased so that the expenditure on the purchase of sugar remains the same? [Give your answer correct to 2 decimal places.]

Option 1: 11.11%

Option 2: 12.5%

Option 3: 14.16%

Option 4: 13.04%

Question : If the radius of a cylinder is decreased by 12%, then by how much percentage must its height be increased so that the volume of the cylinder remains the same?

Option 1: 29.13%

Option 2: 21.78%

Option 3: 42.56%

Option 4: 34.27%

Question : The price of electricity has been increased by 25%. If a person wants to keep the expenditure the same, then the percentage reduction in the use of electricity should be:

Option 1: 19

Option 2: 18

Option 3: 21

Option 4: 20

Question : If the price of rice is raised by 25%, the percentage by which a house holder must reduce his consumption of rice so as not to increase his expenditure on rice is:

Option 1: 225%

Option 2: 25.75%

Option 3: 25%

Option 4: 20%