1道简单数学题却有4种答案？连老外都懵圈了
<p><span word="Are">Are</span> <span word="you">you</span> <span word="a">a</span> <span word="mastermind">mastermind</span> <span word="mathematician">mathematician</span> ? <span word="Try">Try</span> <span word="your">your</span> <span word="hand">hand</span> <span word="at">at</span> <span word="this">this</span> <span word="puzzle">puzzle</span>—<span word="and">and</span> <span word="you">you</span> <span word="won">won</span>'<span word="t">t</span> <span word="even">even</span> <span word="need">need</span> <span word="a">a</span> <span word="calculator">calculator</span> <span word="to">to</span> <span word="solve">solve</span> <span word="it">it</span>. <span word="This">This</span> <span word="problem">problem</span> <span word="may">may</span> <span word="be">be</span> <span word="billed">billed</span> <span word="as">as</span> <span word="an">an</span> “<span word="easy">easy</span>” <span word="brainteaser">brainteaser</span> <span word="for">for</span> <span word="children">children</span>, <span word="but">but</span> <span word="it">it</span> <span word="has">has</span> <span word="left">left</span> <span word="even">even</span> <span word="the">the</span> <span word="most">most</span> <span word="advanced">advanced</span> <span word="puzzle">puzzle</span> <span word="solvers">solvers</span> <span word="scratching">scratching</span> <span word="their">their</span> <span word="heads">heads</span>.</p><p>你是一位擅长谋划的数学家吗？试试这道谜题，你甚至不需要计算器就可以解决它。对孩子们来说，这个难题也许“很简单”，但它还是让最优秀的解谜者们感到困惑。</p><p><span word="If">If</span> <span word="you">you</span> <span word="ask">ask</span> <span word="most">most</span> <span word="Internet">Internet</span> <span word="users">users</span>, <span word="you">you</span>'<span word="ll">ll</span> <span word="find">find</span> <span word="that">that</span> <span word="there">there</span> <span word="is">is</span> <span word="a">a</span> <span word="huge">huge</span> <span word="range">range</span> <span word="of">of</span> <span word="possible">possible</span> <span word="answers">answers</span>. <span word="People">People</span> <span word="have">have</span> <span word="argued">argued</span> <span word="that">that</span> <span word="the">the</span> <span word="final">final</span> <span word="number">number</span> <span word="could">could</span> <span word="be">be</span> <span word="anything">anything</span> <span word="from">from</span> 14 <span word="to">to</span> 15 <span word="to">to</span> 16 <span word="to">to</span> 20.</p><p>如果你问一下多数网友，你就会发现有许多可能的答案。大家争论道，最终的答案可能是14,15,16或20中的任何一个。</p>
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