The ratio of boys and girls is 3:4. If there are 28 students in a class, how many are the boys?
Answer: 12
Explanation
The ratio of boys to girls is given as 3:4, and the total number of students in the class is 28.
Step 1: Add the parts of the ratio
3+4=7Step 2: Calculate the value of one part
Each part of the ratio represents:
Value of one part=Total students/Sum of ratio parts=28/7=4Step 3: Find the number of boys
The boys' share is 3 parts, so:
Number of boys=3×4=12
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