Question
The total length of a thread, a ribbon and a rope is 33 m. The rope is 7 m longer than the thread. The ribbon is 3 times as long as the thread. Find the difference in length between the ribbon and the rope.
4 m

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The total length of a thread, a ribbon and a rope is 33 m. The rope is 7 m longer than the thread. The ribbon is 3 times as long as the thread. Find the difference in length between the ribbon and the rope.