Chances for a business meeting
Jack will enter the office today at a random time between 2pm and 3pm. He will stay in the office for 15 minutes. John has a similar schedule, with the entry time chosen independently.
They have a business to transact and it requires that they are together in the office for 5 minutes before 3pm. What are the chances that the business is transacted today?
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WIN 拢15 will be awarded to the sender of the first correct answer opened on Wednesday 22 December 2010. The Editor鈥檚 decision is final. Please send entries to Enigma 1622, New 女生小视频, Lacon House, 84 Theobald鈥檚 Road, London WC1X 8NS, or to enigma@newscientist.com (please include your postal address).
Answer to 1616 One good turn: Penny turned over a counter 33 times
The winner Tony McCoy O鈥橤rady of Rathfarnham, Dublin, Ireland
