My friend and I agree to meet during our lunch hour. If we each decide to wait for 15 minutes, what is the probability that we will meet? How long should we agree to wait in order to have a 50% chance of meeting? How long for an 80% chance?A version of this problem was set as the final question for the 2005 New South Wales Higher School Certificate examination in Mathematics. Copyright is held by the New South Wales Board of Studies.
http://compasstech.com.au/TNSINTRO/TI-NspireCD/Exemplary_Activities_PDF/Act5_MeetaFriend.pdf
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