this post was submitted on 01 Dec 2023
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The SAT Question Everyone Got Wrong (www.youtube.com)
submitted 1 year ago by [email protected] to c/[email protected]
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[–] [email protected] 1 points 11 months ago* (last edited 11 months ago)

Not quite. With radius 2 and 3 circles, the outer circle would take 2.5 rotations to complete the revolution. You have to set the first circle radius to 1 (divide both radii by the lesser) and then add the radii to calculate the relative circumference of the circle drawn by the motion of the center of the outer circle, so the answer would be calculated like:

2/2 + 3/2 = 5/2 = 2.5