Long answer·Hard exam skill (4/5)·No calculatorNeeds mentor review
Difficulty guide
The label describes the problem, not your ability.
1/5 - Foundational
Warm-up setup; checks one basic idea.
2/5 - Routine exam skill
Normal syllabus skill; usually one main rule or interpretation.
3/5 - Standard multi-step
Exam-style problem with multiple steps or a common trap.
4/5 - Hard exam skill
High-end exam problem; combines methods carefully.
5/5 - Challenge
Stretch problem beyond normal exam pressure.
Question
A box contains green, orange, and purple cards. Three cards are drawn one after another without replacement.
Total: 5 marks
(a) Find the probability of drawing green first and orange second. (1 mark)
(b) Find the probability of drawing green, then orange, then purple in this order. (2 marks)
(c) Find the probability that all three cards are green. (2 marks)
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