Question
The total length of a thread, a rope and a string is 45.4 m. The string is 7 m longer than the thread. The rope is 4 times as long as the thread. Find the difference in length between the rope and the string.
4 m

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The total length of a thread, a rope and a string is 45.4 m. The string is 7 m longer than the thread. The rope is 4 times as long as the thread. Find the difference in length between the rope and the string.