Decide among the following sets, which are subsets of which:
A = {x: x satisfies x² – 8x + 12=0}, B = {2,4,6}, C = {2,4,6,8,….}, D = {6}

The probability that a bulb produced by a factory will fuse after 150 days of use is 0.05. Find the probability that out of 5 such bulbs. 

(i) none 

(ii) not more than one 

(iii) more than one 

(iv) at least one will fuse after 150 days of use