A jar contains only black beads, gold beads, and silver beads. A bead is selected at random. The table shows the probability of selecting a black bead.
| Bead | Black | Gold | Silver |
|---|---|---|---|
| Probability | 0.1 |
The probability of selecting a gold bead is equal to the probability of selecting a silver bead.
Complete the table.
There are 15 black beads in the jar. Work out the total number of beads in the jar.
128 exam-style questions on Edexcel GCSE Maths Probability. Each one has a worked solution and a mark scheme showing where the marks go.