40 students took a Biology test and a Chemistry test.
32 of the students passed the Biology test.
Of the students who passed the Biology test, 25 passed the Chemistry test. Of the students who failed the Biology test, 3 passed the Chemistry test.
Use this information to complete the frequency tree.

Write down the number of students that passed the Chemistry test.
Practise Edexcel GCSE Maths Frequency Trees with exam-style questions for Foundation and Higher tier. 28 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.