Posted by **Anonymous** on Wednesday, January 6, 2010 at 3:50pm.

if wayne completed a task in one hour and sarah completed a task in two hours, how long will they take if they work together?

- math -
**Marth**, Wednesday, January 6, 2010 at 7:54pm
Every hour Wayne completes 1 task, and Sarah completes (1/2) task (simply take the reciprocal). Together, in 1 hour they will complete 3/2 tasks. Therefore, to complete 1 task, it takes them 2/3 hours.

## Answer this Question

## Related Questions

- Radical and Rational exponents - Estimate how long it takes you to complete a ...
- math - it takes janet 9 hours to do a task and it take jancie 10 hours to do the...
- Math/Management - Ten jobs are to be completed by three workers (Sam, Joy, and ...
- math - one task takes 7 mins second task takes 12 min third task takes 21 nin ...
- MATH - An application of a rational function is T = (AB)/(A+B), which gives the...
- Algebra - One person can complete a task in 3 minutes. A second person can ...
- math - If A and B work together,they can finish a task in 2 hours. If they do ...
- math - need to check answers please 9/11-3/11+7/11=13/11=1 2/11 evaluate then ...
- college algebra - Find the time for two people working together to complete half...
- Mathematics - Twelve man take 6 hours to finish a piece of work. After the 12 ...

More Related Questions