Question
The length of a ribbon is 34 m longer than a thread. The length of a wire is 25 m shorter than the ribbon. The total length of the ribbon, the wire and the thread is 115 m. What is the length of the ribbon?
4 m

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The length of a ribbon is 34 m longer than a thread. The length of a wire is 25 m shorter than the ribbon. The total length of the ribbon, the wire and the thread is 115 m. What is the length of the ribbon?