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Mathematics (AS & A Level) · Feb / March 2020 · Paper 52 · Question 6

9709

As printed in the paper

The question as text

Box A contains 7 red balls and 1 blue ball. Box B contains 9 red balls and 5 blue balls. A ball is chosen at random from box A and placed in box B. A ball is then chosen at random from box B. The tree diagram below shows the possibilities for the colours of the balls chosen.

Read automatically from the paper; the printed page above is exact.

Show the answer and mark scheme
  • 6(a)[3]

  • 6(b)[2]

  • 6(c)[4]

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