Unknown number of girls in a class

Unknown number of girls in a class

Secondary 2
TGM Original Questions

There are 24 boys and \(y\) girls in a class. The probability of selecting a girl is \(3/11\). Find

  1. the probability of selecting a boy,
  2. \(y\).

Solution:

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Answer:(a) \(8/11\); (b) \(y=9\).

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