Three pen colours from given probabilities
Three pen colours from given probabilities
Secondary 2
5 marks
TGM Original Questions
A bag contains black, red and green pens. The probability of green is 15% and the probability of black is 0.55. One pen is selected at random.
- Find the probability of not green.[2]
- Find the probability of red.[2]
- If there are 18 red pens, find the total number of pens.[1]
Solution:
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Answer:(a) \(0.85\) (b) \(0.30\) (c) \(60\).
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