 Hello and welcome to the session. In this session we are going to discuss the following question and the question says that Caroline's brother's age is 5 years and Caroline is younger to her brother, right in inequality that represents age of Caroline. Let us proceed to the solution. Now in this question we are given that Caroline's brother's age is 5 years and Caroline is younger to her brother and we need to write an inequality that represents Caroline's age. Suppose that Caroline's age is given by x and we are given that Caroline's brother's age is 5 years. According to the question, Caroline is younger to her brother so age of Caroline will be less than her brother's age but cannot be equal to his age. So Caroline's age which is denoted by x will be less than his brother's age that is 5 years. Therefore, x is less than 5 is the required inequality. This completes our session. Hope you enjoyed this session.