20. Five mark exercise problem III

A bag contains $12$ blue balls and $x$ red balls. If one ball is drawn at random (i) what is the probability that it will be a red ball? (ii) If $8$ more red ball will be twice that of the probability in (i), then find $x$.

 

Answer:

 

(i) The probability that the ball drawn is a red ball $=$ $\frac{i}{i}$

 

(ii) The value of $x =$