Time and Work on Arithmetic Aptitude related Questions and Answers


Question :   A can do piece of work in 30 days while B alone can do it in 40 days. In how many days can A and B working together do it?
1. 17 1/7 days
2. 15 2/3 days
3. 15 2/7 days
4. 17 2/7 days
Answer :   1 - 17 1/7 days  

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