Question
The total length of a rope, a ribbon and a string is 45.5 m. The string is 12 m longer than the rope. The ribbon is 3 times as long as the rope. Find the difference in length between the ribbon and the string.
4 m

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The total length of a rope, a ribbon and a string is 45.5 m. The string is 12 m longer than the rope. The ribbon is 3 times as long as the rope. Find the difference in length between the ribbon and the string.