Each day Paul wears either a black tie or a red tie to work.
On any day the probability he wears a black tie is 59\displaystyle \frac{5}{9}95
Complete the probability tree diagram for Monday and Tuesday.
Work out the probability Paul wears different coloured ties on Monday and Tuesday.
36 exam-style questions on Edexcel GCSE Maths Probability Trees. Each one has a worked solution and a mark scheme showing where the marks go.