Question
Desks are arranged at an equal distance from one another. The distance between the 4th and the 5th desk is 7 m. What is the distance between the 6th and the 15th desk?
4 m

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Desks are arranged at an equal distance from one another. The distance between the 4th and the 5th desk is 7 m. What is the distance between the 6th and the 15th desk?