Opening the paper…
Figure from the original question paper Figure from the original question paper Three companies Kookabura, Dukes and SG supply 25%, 35% and 40% of the cricket balls in the international cricket matches, respectively. Past experience shows that 5%, 4% and 2% of the cricket balls produced by these companies are defective respectively. If a cricket ball was found to be defective, what is the probability that the cricket ball was supplied by Kookabura?