This always messes with my head: If you drive 30 mph to a destination, and then want to average 60 mph for the *entire* trip (there and back), how fast do you have to drive on the way back? Most people guess 90 mph or even 120 mph. The actual answer is way wilder.
This always messes with my head: If you drive 30 mph to a destination, and then want to average 60 mph for the *entire* trip (there and back), how fast do you have to drive on the way back? Most people guess 90 mph or even 120 mph. The actual answer is way wilder.
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