 ## Percent, Fraction, And Decimal Equivalences

Any real number can be expressed as a decimal, a percentage, or a fraction number. For instance, 3/10, 30%, and 0.3 are all different forms of the same value, or quantity. You must know how to convert one form to another as part of solving problems. You should know how to write any equivalence quickly […] ## Problems Involving Rate Of Production Or Work

A rate is a fraction that expresses a quantity per unit of time. For example, the rate at which a machine produces a certain product is expressed this way: rate of production = number of units produced / time A simple rate question might simply provide two of the three terms, and then ask you […] ## Probability Problem: What Is The Probability?

Probability is a number between zero and one. It calculates how likely an event is to happen. The probability can never be greater than 1 (one) or less than 0 (zero). It can be represented in several ways; in a fraction such 1/2, a decimal such as 0.5 or a percentage such as 50%. The […] ## Percent Problem: What Is The Total Number Of Students?

The percent problem is: In an examination, 60% of the candidates passed in English, 70% passed in mathematics, and 10% failed in both subjects. If 144 candidates passed in both, what is the total number of students? Steps to Get The Total Number Of Students To solve this problem; the first approach is to set […]