A shop selling electronic items sells smartphones of only three reputed companies A, B and C because chances of their manufacturing a defective smartphone are only $5%$, $4%$ and $2%$ respectively. In his inventory he has $25%$ smartphones from company A, $35%$ smartphones from company B and $40%$ smartphones from company C. A person buys a smartphone from this shop. (i) Find the probability that it was defective. (2) (ii) What is the probability that this defective smartphone was manufactured by company B ? (2)