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19 July, 14:17

The ratio of girls to boys who participated in the quiz bowl was 7:5. There were 42 girls in the competition. How many boys participated?

A) 28

B) 30

C) 35

D) 49

+5
Answers (2)
  1. 19 July, 14:57
    0
    30, because (7 girls : 5 boys) * 6 = 42 girls:30 boys.
  2. 19 July, 15:57
    0
    B: Because 42:7=6 and 6*5=30.
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