Question
A streamer is thrice as long as a string. The string is twice as long as a thread. The streamer is 6 m 40 cm longer than the thread. What is the total length of the string and the thread?
4 m

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A streamer is thrice as long as a string. The string is twice as long as a thread. The streamer is 6 m 40 cm longer than the thread. What is the total length of the string and the thread?