Question
The length of Strings Q and R is 31.16 m. The length of Strings R, S and T is 57.78 m. The total length of Strings S, T and U is 65.78 m. String U is thrice the length of String Q. Find the length of String Q. Express the answer in metres.
4 m

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The length of Strings Q and R is 31.16 m. The length of Strings R, S and T is 57.78 m. The total length of Strings S, T and U is 65.78 m. String U is thrice the length of String Q. Find the length of String Q. Express the answer in metres.