Applications of Percentage
1. Salary of A is 75% of B’s salary. Salary of A is increased by 40% but salary of B is increased by only 10%. Whose salary is more and by what percent?
2. The price of a commodity increases by 55% and therefore a house wife reduces the quantity purchased by certain percentage in order to maintain expenditure. By what percentage should she reduce the quantity purchased?
3. The price of a commodity increases by 25%. Find out the reduction in quantity such that the expenditure is allowed to increase by 20%?