Question

The ratio of girls to boys in a particular classroom is 8: 7. How many boys are in the class if there are 45 students?

ONLY ANSWER IF YOU KNOW THE ANSWER

Answer 1

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Answer:

  21

Step-by-step explanation:

Rearranging the given ratio, we can find the ratio of boys to the total.

  boys : (boys +girls) = 7 : (7+8) = 7 : 15

Then the number of boys is ...

  (7/15)(45) = 21

There are 21 boys in the classroom.