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Logan genetically engineered a new type of fir tree and a new type of pine tree. The combined height of one fir tree and one pine tree is 21 meters. The height of 4 fir trees stacked on top of each other is 24 meters taller than one pine tree.

User Gesias
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I'm so sorry I wish I knew the answer to your question
User Joydeep Sen Sarma
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