A ribbon is cut into three pieces in the ratio 2 : 3 : 5. If the length of the longest piece is 20 cm, what is the total length of the ribbon?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 40 cm.
Ribbon cut in ratio of 2 : 3 : 5, and the longest piece = 20 cm
Longest piece = 5 parts = 20 cm ⇒ 1 part = 4 cm
Total parts = 2 + 3 + 5 = 10
Total length = 10 × 4 = 40 cm