If team A is the underdog in playing team B and has probability 1/4 of winning every game it plays against team B. What is the probability that it wins the best-of-three series over team B

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?