# SOLUTION: Frank can cut his lawn in 4 1/2 hours, his wife can cut the same lawn in 4 hours, while their son tom can cut the lawn in 3 1/2 hours. how long would it tak to cut the lawn if all

Algebra ->  Algebra  -> Customizable Word Problem Solvers  -> Mixtures -> SOLUTION: Frank can cut his lawn in 4 1/2 hours, his wife can cut the same lawn in 4 hours, while their son tom can cut the lawn in 3 1/2 hours. how long would it tak to cut the lawn if all       Log On

 Ad: Over 600 Algebra Word Problems at edhelper.com Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help! Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

 Word Problems: Mixtures Solvers Lessons Answers archive Quiz In Depth

 Question 305049: Frank can cut his lawn in 4 1/2 hours, his wife can cut the same lawn in 4 hours, while their son tom can cut the lawn in 3 1/2 hours. how long would it tak to cut the lawn if all three worked together? Sat prep. Question. Ans. 252/191 hoursAnswer by ankor@dixie-net.com(15656)   (Show Source): You can put this solution on YOUR website!Frank can cut his lawn in 4 1/2 hours, his wife can cut the same lawn in 4 hours, while their son tom can cut the lawn in 3 1/2 hours. how long would it take to cut the lawn if all three worked together? : Let t = time required when all three work together (with 3 lawn mowers) : let the completed job = 1; (a mown lawn) : + + = 1 : Multiply equation by 252, results 56t + 63t + 72t = 252 191t = 252 t = , just like you had t = 1.32 hrs working together