SOLUTION: There are 20 children in a class. Which of the following could NOT represent the ratio of boys to girls? (a) 1:1 (B) 5:4 (C) 3:2 (D) 7:3 (E) 4:1

SOLUTION: There are 20 children in a class. Which of the following could NOT represent the ratio of boys to girls? (a) 1:1 (B) 5:4 (C) 3:2 (D) 7:3 (E) 4:1

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Question 849400: There are 20 children in a class. Which of the following could NOT represent the ratio of boys to girls?
(a) 1:1
(B) 5:4
(C) 3:2
(D) 7:3
(E) 4:1
Answer by LinnW(1048) (Show Source): You can put this solution on YOUR website!
5:4 cannot be correct because
5/(5+4) = 5/9 is the fraction that would represent boys.
(5/9)*20 = 100/9. 100/9 is not a whole number
so the ratio does not work.
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