Brainteaser for March 4, 2010Question:The children like to help out stuffing envelopes when we do large mailings, but they don't all work at the same speed. Robert and David can do a certain number of envelopes in 10 hours. For the same number of envelopes it takes David and Bailey 15 hours. Robert and Bailey together take 30 hours for the same task. How many hours would it take each of them if they were to stuff the envelopes on their own?Click here to check your answer.Find more Brain Teasers, Puzzles and Games to challenge the mind at The Brainteasers Network |
Thursday, March 4, 2010
Brainteaser for March 4, 2010
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