Question

out of 30 students in a class 9 are girls. What is the percentage of boys​

Answer 1

Answer:

70%

Step-by-step explanation:

if there are 30 students in total and 9 are girls, then the percentage of girls is 30%

so boys percentage= 100% - 30%= 70%

Answer 2

Answer:

Total students = 30

Total girls = 9

Total boys = 30-9 =21

percentage of boys = 21/30×100

= 70%