how to solved in % and ratio?

Hi Chandan,

Questions in ratio, proportion and percentages are quite commonly asked in competitive examinations. The single most important trick in solving these kind of questions is to ensure that you get the denominator correct while solving it.

For example, the percentage of profit will differ based on whether it is calculated on cost price or on selling price. It is important for a student to keep in mind these kind of differences to ensure that silly mistakes are not committed while solving questions.

The other important concept in ratio and proportion is the rule of Alligation.