A box contains 4 green balls and 6 yellow balls. Three balls are taken at random without replacement.
Work out the probability that at least one of the balls is green.
(3 marks)Tier
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This is our Edexcel 1MA1 course. The topics are the same as OCR J560, but our questions and timed papers follow Edexcel's layout.
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3 papers · 300 marks. Any topic can come up on any paper. The middle paper is the non-calculator one. Questions here are original practice, not past papers.