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12 July, 23:44

There are 4 boys in a class of 13 students.

(a) What is the ratio of girls to boys?

(b) What is the ratio of girls to all students in the class?

8

X

5

?

+2
Answers (2)
  1. 13 July, 00:07
    0
    (a) = 9:4

    (b) = 9:13

    8x5=40
  2. 13 July, 01:41
    0
    A - 9:4

    B - 9:13

    8*5=40

    To find girls, you need to subtract boys (4) from total (13).

    You get 9, so that is girls. 9 girls to 4 boys. Total is 13 so 9 girls to 13 people total. For the last one, if you are asking 8*5, that is 40.
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