In a bag there are only red counters, blue counters and white counters. A counter is taken at random from the bag.
The table shows the probability of getting a red counter.
| Colour | Red | Blue | White |
|---|---|---|---|
| Probability | 512\dfrac{5}{12}125 |
the number of blue counters : the number of white counters = 3 : 4
Complete the table, giving your answers as fractions in their simplest form.
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