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PERCENTAGES :

A fraction whose denominator 100 is called the rate percent. It is usually called a percentage and numerator of the fraction is denoted by %

1. If A is x % more than B, then B is less than A by

2. If A is x % less than B, then B is more than A by

3. If the price of a commodity increases by x%, then reduction in consumption, not to increase the expenditure is

4. If the price of a commodity increases by x%, then the increase in consumption,++++++++ not to increase the expenditure is

5. Let the present value of a machine be P, and the depreciates at the rate of r% per annum, then

6. Let the population of a town be P now and it increases at the rate of r% per annum. Then