Shaded and numbered spinner events

Shaded and numbered spinner events

Secondary 2
TGM Original Questions

A fair spinner has 12 equal sectors numbered 1 to 12. Sectors 2, 3, 5, 8 and 11 are shaded. Find the probability that the selected sector

  1. is even,
  2. is shaded,
  3. is a perfect square,
  4. is even or shaded,
  5. is prime and shaded.

Solution:

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Answer:(i) \(1/2\); (ii) \(5/12\); (iii) \(1/4\); (iv) \(3/4\); (v) \(1/3\).

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