In a box there are only black pens, blue pens and green pens. A pen is taken at random from the box. The table shows the probability of the pen being blue and green.
| Colour | Black | Blue | Green |
|---|---|---|---|
| Probability | 0.24 | 0.12 |
Complete the table to show the probability that pen will be black.
323 exam-style questions on Edexcel GCSE Maths Probability. Each one has a worked solution and a mark scheme showing where the marks go.