How To Do Percentages Online Tutoring - Maths Online Tutors

How To Do Percentages Online Tutoring - Maths Online Tutors We can define percentage as a number or as a ratio which is a fraction of 100. In general, we can say percent is per 100. We can denote the percent by a symbol that is %. We can also say, percentages are used to express how small (or large) quantity related with large (or small). For example, we can read 20% as twenty percent. We can write this as (20/100). We can find the percentage of a number by a formula that is Percentage = (Given number/Total number) x 100. Example 1: Find the percentage of math students out of 100 students if only 45 are from math department. Solution:The total number of students = 100 The number of students from math department = 45 Percentage of math students = (Number of math students/ Total number of students) x 100 = (45/100) x 100 = 45 % Hence the percentage of math students is 45%. Example 2: Find the percentage of baby boys in a hospital is out of 50 children was born, if only 27 are baby boys. Solution:The total number of children born in hospital = 50 The number of Children are boys = 27 Percentage of boy Children = (Number of Children are baby boys/ Total number of children born in hospital) x 100 = (27/50) x 100 = 27 x 2 = 54% Hence the percentage of baby boys is 54%.