Employees from two offices, Office A and Office B, attended a joint training session.
20% of the attendees were managers, the rest were staff. 42% of the attendees were from Office A. 45% of the attendees were staff from Office B.
One of the attendees is selected at random. Find the probability that they are a manager from Office A.
Practise Edexcel GCSE Maths Two Way Tables with exam-style questions for Foundation and Higher tier. 40 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.