Question: A column of soldiers, marching at 120 paces per minute, keep in step with the beat of a drummer at the head of the column.

A column of soldiers, marching at 120 paces per minute, keep in step with the beat of a drummer at the head of the column. The soldiers in the rear end of the column are striding forward with the left foot when the drummer is advancing with the right foot. What is the approximate length of the column?

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