Q.no 3 In a bag there are only red bricks, blue bricks, green bricks and orange bricks.

The number of green bricks in the bag is the same as the number of orange bricks.

Jiao takes at random a brick from the bag.

The table gives the probability that Jiao takes a red brick and the probability that he takes

a blue brick.

(a) Work out the probability that Jiao takes an orange brick.