.Manoj's income increased by `20%` and then decreased by `20%` .What is the total percentage change in Manoj's income?

Side of a square is first increased by 10% and then decreased by 20%. What is the overall percentage change in area ?

A man spends 70% of his income and saves the rest. If his income decreases by 30% and spending decreases by 20%, then what is the percentage change in his savings?

If length of the rectangle is increased by 50% and breadth is decreased by 20% . Then what is the percentage change in the area?

If length of the rectangle is increased by 50% and breadth is decreased by 20%. Then, what is the percentage change in the area?

The radius of a solid right circular cylinder increases by 20% and its height decreases by 20%. Find the percentage change in its volume.

A saves 20% of his income. His income is increased by 25%, so he increased his expenditure by 25%. What is the percentage change in his savings?

If the base of triangle is increased by 10% and height is decreased by 20%, then what will be the percentage change in the area of a triangle ?