Question
Streamer E is thrice as long as Streamer F. Streamer F is 40 cm shorter than Streamer G. Streamer G is 64 cm shorter than Streamer E. How long is Streamer F?
4 m

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Streamer E is thrice as long as Streamer F. Streamer F is 40 cm shorter than Streamer G. Streamer G is 64 cm shorter than Streamer E. How long is Streamer F?