**Helpful Links**Question**

27) Amina has two bags.

In the first bag there are 3 red balls and 7 green balls.

In the second bag there are 5 red balls and 4 green balls.

Amina takes at random a ball from the first bag.

She then takes at random a ball from the second bag.

a) Complete the probability tree diagram.

In the first bag there are 3 red balls and 7 green balls.

In the second bag there are 5 red balls and 4 green balls.

Amina takes at random a ball from the first bag.

She then takes at random a ball from the second bag.

a) Complete the probability tree diagram.

**[2 marks]**

b) Work out the probability that Amina takes two red balls.

**[2 marks]**