Step-by-step Tape Diagram Lesson worksheet for solving a ratio problem involving boys and girls in a school.

Let’s solve this step by step.

We’re told:
- Total students = 250
- Ratio of boys to girls = 2:3

That means for every 2 boys, there are 3 girls. So together, that’s 2 + 3 = 5 parts total.

Step 1: Find out how many students are in one part.
Since 5 parts = 250 students,
→ 1 part = 250 ÷ 5 = 50 students.

Step 2: Find number of boys.
Boys = 2 parts → 2 × 50 = 100 boys.

Step 3: Find number of girls.
Girls = 3 parts → 3 × 50 = 150 girls.

Check: 100 boys + 150 girls = 250 total → matches the given total.

Also, check ratio: 100:150 simplifies to 2:3 → correct.

So, total number of girls is 150.

Final Answer:
150