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Five balls, A, B, C, D, and E, weigh 30g, 50g, 50g, 50g, and 80g each. Which ball weighs 30g?

Five balls, A, B, C, D, and E, weigh 30g, 50g, 50g, 50g, and 80g each. Which ball-example-1
User Micrub
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Answer:

A weighs 30 because it is always on the higher side

User TheDarkKnight
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