Each factor of 220 is inscribed on its own plastic ball, and all of the balls are placed in a jar. If a ball is randomly selected from the jar, what is the probability that the ball is inscribed with a multiple of 55?  Choose the correct choice from the following answers:  A) 1/16  B) 5/42  C) 1/8  D) 3/16  E) 1/4
the # of factors 220 has is 12 ;   so out of 12 factors only three are multiples of 55: 55, 110 and 220, itself;   So, the probability is 3/12=1/4.   Answer: 1/4.
<result>E</result>
Each factor of 220 is inscribed on its own plastic ball, and all of the balls are placed in a jar. If a ball is randomly selected from the jar, what is the probability that the ball is inscribed with a multiple of 55?