[" (a) "3:1],[" The population of a city decreased from "25,000" to "24,500" .Find the percentage "],[" decrease."]

The population of a city decreased from 25,000 to 24,500. Find decrease percentage.

If the radius of a circle is decreased by 50%, find the percentage decrease in its area.

If the diagonal of a square is decreased by 15%, find the percentage decrease in its area.

If sides of a rectangle are decreased by 15 % , find the percentage decrease in its perimeter.

The population of a city increased by 10% and then decreased by 20% . The net decrease in te population is

If the radius of a sphere is decreased by 25%, then the percentage decrease in its surface area is:

The income of a person A increases from Rs. 12,000 to Rs. 14,000 and the expenditure increases from 40% to 50%. Find the percentage increase or decrease in the monthly savings of A.