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name = 'puzzle_abc/3'
slug = 'age puzzle: abc'
description = '''\
<p>Person <code>A</code> is two years older than <code>B</code> who is twice as old as <code>C</code>. The total of the ages of A, B and C is 27.</p>
<p>Write the predicate <code>puzzle_abc(A, B, C)</code> that finds the ages of the three people.</p>'''
hint = {}
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