Question
The average height of a durian tree, a guava tree and a chikoo tree is 11.6 m. The chikoo tree is four times as tall as the guava tree and 1.2 m taller than the durian tree. Find the average height of the durian tree and the guava tree.
2 m

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The average height of a durian tree, a guava tree and a chikoo tree is 11.6 m. The chikoo tree is four times as tall as the guava tree and 1.2 m taller than the durian tree. Find the average height of the durian tree and the guava tree.