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Mathematics, 13.12.2020 02:50 oliup567

Noel’s brother is 3 times as old as Noel. The sum of their ages is less than 20. What’s the oldest age that Noel could be? Identify:

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Noel’s brother is 3 times as old as Noel. The sum of their ages is less than 20. What’s the oldest a...
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