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Praveen Singh • 36.81K Points
Coach Math

Q. The mean weight of 150 students in a class is 60 kg. The mean weight of boys is 70 kg and that of girls is 55 kg. What is the number of boys in the class?

  • (A) 50
  • (B) 60
  • (C) 75
  • (D) 100
  • Correct Answer - Option(A)
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  • Filed under category Math

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