In a bag there are only black counters, white counters and red counters. A counter is taken at random from the bag. The table shows the probability of taking a black counter and a white counter.
| Colour | Black | White | Red |
|---|---|---|---|
| Probability | 310\displaystyle \frac{3}{10}103 | 35\displaystyle \frac{3}{5}53 |
Complete the table to show the probabilities of the counter being red.
Practise OCR GCSE Maths Probability with exam-style questions for Foundation and Higher tier. 212 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.
