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22)

There are only blue cubes, red cubes and yellow cubes in a box.

The table shows the probability of taking at random a blue cube from the box.

The number of red cubes in the box is the same as the number of yellow cubes in the box.

a) Complete the table.

a) Complete the table.

**[2 marks]**

There are 12 blue cubes in the box.

b) Work out the total number of cubes in the box.

**[2 marks]**