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**noreply** · 02-01-2013

I have two egg timers, one empties in four minutes, the other empties in ten minutes. How can I use them to measure exactly ten minutes?

02-01-2013	#1
noreply Join Date: Dec 2011 Posts: 90	Egg Timers I have two egg timers, one empties in four minutes, the other empties in ten minutes. How can I use them to measure exactly ten minutes?