50. First and foremost, in the given situation, there are only 2 person, Carl and Tino. Not Three. => Carl has 42 inches of ribbon => Tino has 2.5 feet of ribbon. Now, we need to convert this into yard, feet and inches, let’s have yard first => 42 inches = 1.17 yard => 2.5 feet = 0.83 yard => 1.17 + 0.83 => 2 yards in total Now, the feet => 42 inches = 3.5 feet => 2.5 feet => 3.5 feet + 2.5 Feet => 6 feet in total Next is the inches => 42 inches => 2.5 feet = 30 inches => 42 inches + 30 inches = 72 inches in total