Question

in a class of 30 pupils, there are 18 girls. what percentage of the pupils are boys

Answer 1

Answer:

40%

Step-by-step explanation:

Express the boys as a fraction of the whole class then multiply by 100%

number of boys in class = 30 - 18 = 12

percentage of boys = $\frac{12}{30}$ × 100% = 40%