北京时间6月17日14点，2023阿里巴巴全球数学竞赛决赛将正式打响，来自全球19个国家与地区的685名数学高手将连续在线答题8小时，进行终极角逐。这是全球数学的尖峰时刻，数学界都在期待新一波数学家崭露头角。

阿里巴巴全球数学竞赛是全球最大的在线数学赛事，自2018年来已连续举办五届。该项赛事在数学界首开先河，不设报名门槛、全程在线比赛，最大限度为世界各地的数学爱好者创造参与空间。今年预选赛共有5万多人报名，最终685位选手成功晋级，晋级率仅为1.3%。

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厉钟顺3886数学竞赛答对一题加4分,答错一题减1分,答了20道题,得了60分,问答对了多少道 -
太龙邓17557285221 ______ 设答对了x道题4x-(20-x)=604x-20+x=605x=80 x=16 答:答对16道.