SOLUTION: Mary can work word problems twice as fast as Tara. If they work on a mathematics assignment as a team, it takes two hours to finish the assignment. How long would it have taken Mar

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Mary can work word problems twice as fast as Tara. If they work on a mathematics assignment as a team, it takes two hours to finish the assignment. How long would it have taken Mar      Log On


   

Question 843338: Mary can work word problems twice as fast as Tara. If they work on a mathematics assignment as a team, it takes two hours to finish the assignment. How long would it have taken Mary alone to do the assignment?

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
2/m+2/2m=1
m=3 hours for mary
2m=6
check
2/6+2/3=1
1/3+2/3=1