Each of the balls weighs 15 grams, with only one weighing 2 grams more than the rest.
Can you, by using the scale only four times, find and isolate this oversized steel ball?
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You are given 50 tiny steel balls and a small, but very exact,
balancing scale. Each of the balls weighs 15 grams, with only one weighing 2 grams more than the rest. Can you, by using the scale only four times, find and isolate this oversized steel ball? |