A 31.93 in. long steel rod is to be cut into pieces 3.56 in. long. Each cut wastes 0.15 in. of rod in shavings. If 8 pieces are cut from the rod, how many inches of the rod are left?
A) 2.25 in.
B) 1.88 in.
C) 3.21 in.
D) 1.7 in.
E) 2.1 in.

Question

Quizplus · Accepted Answer

Each piece of rod is effectively 3.71 in. long (3.56 in. + 0.15 in. of waste per cut). For 8 pieces, the total length used is 8 * 3.71 in. = 29.68 in. Subtracting this from the original length, 31.93 in. - 29.68 in. = 2.25 in. are left.

A 3193 In In