One ball is selected at random from a bag containing 12 balls of which x are white

a) what is the probability of selecting a white ball?

when a further 6 were white balls were added the probability of selecting a white ball is doubled

b) Find x

a) what is the probability of selecting a white ball?

when a further 6 were white balls were added the probability of selecting a white ball is doubled

b) Find x

Answer:Step-by-step explanation: