Hello there, I will try to explain this the best I can for you!
So we have 200 students. And out of those 200 students they can either be Male or Female. But the question says that there are 45% males. Therefore, we would want to take the 200 students, and multiply it by 45%. To do this you would do: 200 * 0.45. When you did that, you would get 90.
Since you want to know how many male student there are, your answer would be 90.
I hope this has helped you!
