Question

2 The ratio of males to females in the class is 5 to 9. If the lunchroom has the same ratio but 45 females, how many males are in the lunchroom?

Answer 1

Step-by-step explanation:

To get 45 females, you have to multiply 9 by a number. That number is 5 because 5 times 9 is 45. So what you do here is what you do with the other number, (5), so 5 times 5 is 25. That means there were 25 males in the lunchroom.

Answer 2

Step-by-step explanation:

From the question, we are given the ratio of males to females in the class as 5 to 9.

Total ratio = 5+9 = 14

Let the total number of student in the class be x. If there are 45 females then;

9/14 * x = 45

9x/14 = 45

Cross multiply;

9x = 14 * 45

x = 14 * 5

x = 70

Hence the total number of student in the class is 70

Get the number of male students;

Total students = Male + Female

70 = Male + 45

Male = 70-45

Male = 25