刘林在当学徒时,加工一个零件要16分钟,现在只要10分鈡.他加工一个零件的时间缩短了百分之几?工作效率提高了百分之几?

xxh_19842022-10-04 11:39:542条回答

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锡自己 共回答了16个问题 | 采纳率87.5%
(16-10)÷16×100%=37.5%
(1/10-1/16)÷1/16×100%=60%
答:他加工一个零件的时间缩短了37.5%,
工作效率提高了60%
1年前
xuyanfeng1 共回答了1个问题 | 采纳率
时间缩短:(16-10)/16*100%=37.5%,效率提高:10/16*100%=62.5%
1年前

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点评:
本题考点: 年龄问题.

考点点评: 解答此题的关键是,弄清题意,明确解题思路,列式即可解答.