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In a class, of the students are girls. If there are 12 boys, how many students are there in all?

Competition practiceNumber & Arithmetic
  • A20
  • B24
  • C30
  • D36

Step-by-Step Solution

Boys make up 1 − 3/5 = 2/5 of the class. So 2/5 of the total is 12, meaning 1/5 = 6 and the total = .
Answer: C) 30

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