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Guidelines for solving Exercise 1 on page 22 in the Math 5 workbook
Problem Statement:
In a classroom, there are 28 students, where the number of boys is 2/5 of the number of girls. Can you determine how many girls and boys are in the class?
Solution Method:
Approach to solving ratio sum problems:
- Summarize the problem using a line segment diagram (ensuring equal division of segments)
- Find the total number of equal parts
- Determine the smaller quantity (number of male students) by dividing the total (number of students in the entire class) by the total number of equal parts, then multiply by the portion corresponding to the smaller quantity (number of male students)
- Find the larger quantity (number of female students) by subtracting the smaller quantity (number of male students) from the total (number of students in the entire class)
Answer:
Let's consider the diagram:
According to the diagram, the total number of equal parts is:
2 + 5 = 7 (parts)
The class has the number of male students as:
28 : 7 x 2 = 8 (students)
The class has the number of female students as:
28 - 8 = 20 (students)
Answer: 8 male students; 20 female students.
Here is the solution guide for Exercise 1 on page 22 of the Math 5 textbook. Additionally, this section includes three more exercises: Solve Exercise 2 Page 22 Math 5, Solve Exercise 3 Page 22 Math 5, and Solve Exercise 4 Page 22 Math 5. Let's explore the guide on solving exercises on page 22 Math 5 to excel in the subject of Grade 5 Mathematics.
