SOLUTION: A painter can do a given job in 6 hours. Her helper can do the same job in 10 hours. The painter begins to work and after 2 hours is joined by her helper.In how many hours will the

Question 1121498: A painter can do a given job in 6 hours. Her helper can do the same job in 10 hours. The painter begins to work and after 2 hours is joined by her helper.In how many hours will they complete the job?
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
Painter rate,

Painter plus helper, rate

ONE job to be done.
Painter, for 2 hours.
Painter with helper, for x hours.

------simplify and solve.

-

, note that LCD is 30.

Two and a half hours
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