In a box there are only black pens, blue pens and red pens.
A pen is taken at random from the box.
The table shows the probability of taking a black pen and a blue pen.
| Colour | Black | Blue | Red |
|---|---|---|---|
| Probability | 512\displaystyle \frac{5}{12}125 | 13\displaystyle \frac{1}{3}31 |
Complete the table to show the probability of the pen being red.
128 exam-style questions on Eduqas GCSE Maths Probability. Each one has a worked solution and a mark scheme showing where the marks go.