In a class of 30 students, 18 are girls. What percentage of the class are boys?
Question
In a class of 30 students, 18 are girls. What percentage of the class are boys?
Solution
Step 1: Find the number of boys in the class. Since there are 30 students in total and 18 of them are girls, the number of boys is 30 - 18 = 12.
Step 2: Calculate the percentage of boys in the class. The formula to calculate the percentage is (Number of boys / Total number of students) * 100. So, (12 / 30) * 100 = 40%.
Therefore, 40% of the class are boys.
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