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Brain teaser for the week 20200530 每周烧次脑
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Difficulty level: ✮ ✮ ✮ ✮ ✮
If everyone working at a car wash works at the same speed, and eight people can wash 50 cars in 60 hours, then four people canwash 100 cars in how many hours?
假设每个人洗车的速度都相铜，如果8个人可以在60个小时内洗完50辆车，那么4个人洗完100辆车要多少个小时？
”
(a) 30
(b) 60
(c) 120
(d) 240
(e) 360
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Answer to be disclosed at our
next episode of brain teaser
答案下期公布
Answer to last week 上期答案：
(e) Patty could give Jelena $20 and could give Steve $10.
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