In the doorknob shown above, when the handle is rotated a distance of 189 millimeters, the spindle is rotated a distance of 27 millimeters. What is the mechanical advantage of this doorknob? A. 7 B. 27

In the doorknob shown above, when the handle is rotated a distance of 189 millimeters, the spindle is rotated a distance of 27 millimeters. What is the mechanical advantage of this doorknob? A. 7 B. 27 C. 189 D. 20

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