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PS3hacr · 09-02-2007

Bill can solve 32 math riddles per hour, and his friend Sam takes three hours to solve the same number. If they both work on them, how long will it take for them to solve 32 math riddles?

09-02-2007	#20
PS3hacr Apprentice Join Date: Sep 2007 Posts: 25 Likes: 0 Liked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Re: Trick Bill can solve 32 math riddles per hour, and his friend Sam takes three hours to solve the same number. If they both work on them, how long will it take for them to solve 32 math riddles?