Scores on unequal circular sectors

Scores on unequal circular sectors

Secondary 2
TGM Original Questions

A circular board has sectors A, B, C and D with angles \(80^\circ,40^\circ,100^\circ,140^\circ\). They score 5, 8, 2 and 1 points, respectively. A dart lands randomly on the board. Find the probability of scoring

  1. 8 points,
  2. less than 5 points,
  3. 6 points.

Solution:

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Answer:(i) \(1/9\); (ii) \(2/3\); (iii) \(0\).

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