ANSWERS: 2
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B + C = 25 B = C + 20 Solve. This isn't a brain teaser, it's Algebra.
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25 = (20 + Cork) + Cork 25 = 20 + Cork + Cork 25 = 20 + 2 * Cork 5 = 2 * Cork 2.5 = Cork. 2.5 + 20 = 22.5 = bottle Verify: 2.5 + 22.5 = 25
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