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There are 400 houses in a city, all of which have either two rooms or four rooms. There are 135 two room houses in the city. There are 110 four-room houses that have a Television. 22% of all the houses with TVs have a cable connection. If 25% of all the houses with both TVs and cable connection are two-door houses, how many four-door houses have both TVs and cable connection? 

 Feb 29, 2020
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There are 85 four-door houses that have both TV and cable.

 Mar 1, 2020

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