A ratio in mathematics shows how many times one number is contained in another.
A ratio can have any number of quantities, such as counts of people or things or measurements of length, weight, time, etc. Both numbers must be positive in most situations.
A ratio can therefore be thought of as an ordered pair of integers, a fraction with the first number in the numerator and the second in the denominator, or as the value represented by this fraction.
In a certain class the ratio of men to women is
In a class there are people.
To find the number of women in a class.
Given that the ratio of men and women in a class is
Let us assume the ratio be and
Given the total no of people in a class is
The number of women in a class is .