39. To prepare 8 boxes of books for shipping, LaRonda will put 2 strips of strapping tape around each box, as shown below. Each strip of tape goes all the way around the box, and the strips of tape meet at right angles on the top and bottom of the box. Each box is 24 inches long, 18 inches wide, and 20 inches high. What is the minimum number of inches of strapping tape LaRonda will need to prepare all 8 boxes for shipping?
Your Answer is
Correct Answer is E
Explanation
From the question, we can know that the length of the ribbon is 4×h + 2×l + 2×w, where h is the height, l is the length, and w is the width. Then the total ribbon length is 4×20 + 2×24 + 2×18 = 164, there are 8 boxes 8×164=1312