Question
The length of Threads V and W is 31.86 m. The length of Threads W, X and Y is 55.99 m. The total length of Threads X, Y and Z is 64.96 m. Thread Z is twice the length of Thread V. Find the length of Thread Z. Express the answer in metres.
4 m

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The length of Threads V and W is 31.86 m. The length of Threads W, X and Y is 55.99 m. The total length of Threads X, Y and Z is 64.96 m. Thread Z is twice the length of Thread V. Find the length of Thread Z. Express the answer in metres.