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标题: House light[:)] [打印本页]

作者: ob 时间: 2004-11-4 23:00
标题: House light[:)]

There is a shortage of tubelights, bulbs and fans in a village - Kharghar. It is found that

All houses do not have either tubelight or bulb or fan.
exactly 19% of houses do not have just one of these.
atleast 67% of houses do not have tubelights.
atleast 83% of houses do not have bulbs.
atleast 73% of houses do not have fans.

What percentage of houses do not have tubelight, bulb and fan?

作者: sean9991 时间: 2004-11-5 01:10
标题: answer

>= 61%

作者: ob 时间: 2004-11-5 09:08
标题: Agree[:)]

Agree

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