Question
The length of pipe C is 34 of the length of pipe F and the length of pipe F is 13 of the length of pipe D and 15 of the length of pipe E. What fraction of the total length of the 4 pipes is pipe D?
3 m

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The length of pipe C is 34 of the length of pipe F and the length of pipe F is 13 of the length of pipe D and 15 of the length of pipe E. What fraction of the total length of the 4 pipes is pipe D?