SOLUTION: Help with word problem please. I do not where and how to start this. I need to just understand how to do this simple way possible using ratios multiple ways to solve this w

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Help with word problem please. I do not where and how to start this. I need to just understand how to do this simple way possible using ratios multiple ways to solve this w      Log On


   



Question 489419: Help with word problem please.
I do not where and how to start this.
I need to just understand how to do this simple way possible using ratios
multiple ways to solve this would be good
Frank can cut a lawn in 2 hours and his younger brother can cut the same lawn in 3 hours. How long will it take them to cut the lawn if they both work together?
60x2 = 120 mins
60x3 = 180 mins
2/3 = 1/60
90 mins


Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
1/2+1/3=1/t
3/6+2/6=1/t
5/6=1/t
5t=6
t=6/5 hours working together..