Didn't watch the video, but believe I figured it out. Weigh 3 vs 3. If equal, then take the 2 unweighed balls and weigh them against each other. If the 3 vs 3 are unequal, take the lighter set and randomly pick 2 of them to weigh. If they are equal, the remaining ball is lighter. Otherwise, if unequal, then obvious. Good brain exercise to get things going in the morning.
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Didn't watch the video, but believe I figured it out. Weigh 3 vs 3. If equal, then take the 2 unweighed balls and weigh them against each other. If the 3 vs 3 are unequal, take the lighter set and randomly pick 2 of them to weigh. If they are equal, the remaining ball is lighter. Otherwise, if unequal, then obvious. Good brain exercise to get things going in the morning.
ReplyDeleteBrian