0580/12 Oct/Nov 2021, Question 24: Basic Probability
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 4 marks
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The question, in short
Yasmin has 4 white, 3 red and x yellow flowers. Picking one at random, the probability of white is 1/5. Find the probability of picking a yellow flower.
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Solution · 4 marks
- 14/(4 + 3 + x) = 1/5
- 24 + 3 + x = 4 × 5 = 20
- 3x = 13
- 4P(yellow) = 13/20
Answer13/20
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