Class groups and gender

Class groups and gender

Secondary 2
TGM Original Questions

A class has 24 Group-A, 15 Group-B and 9 Group-C students. The numbers of girls are 14, 6 and 5, respectively. One student is selected. Find the probability of selecting

  1. a non-A student,
  2. a Group-B boy,
  3. a Group-C girl or Group-A boy.

Solution:

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Answer:(i) \(1/2\); (ii) \(3/16\); (iii) \(5/16\).

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