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82问答网 > 聪明一休在9点到10点之间开始解一道数学题，当时的钟面时针与分针正好成一直线，当他解完这道题时，时针

聪明一休在9点到10点之间开始解一道数学题，当时的钟面时针与分针正好成一直线，当他解完这道题时，时针

2025-03-16 00:20:30

推荐回答（1个）

回答1：

时针每小时转动360÷12=30°，每分钟转动30÷60=0.5°；
分针每分钟转动360÷60=6°；
设一休解这道题用了x分钟，则有：
6x-0.5x=180°，解得：x=

360

11

分钟；
即一休解这道题用了

360

11

分钟．

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