A person spends 60% of income. Income increases by 15% and expenditure by 5%. Find percentage increase in savings.

A person who spends (200/3) % of his income is able to save Rs.1,200 per month. His monthly expenses (in Rs.) are

A number is increased by 20% and then decreased by 20%. Net increase/decrease percentage?

A's weight is 25% of B's weight and 40% of C's weight. What percentage of C's weight is B's weight?

Population increases by 10% in first year and 20% in second. Present population 66,000. Population two years ago?

Population of a town was 150000 three years ago. It increased by 2%, 4% and 5% in the last three years. Present population?