Question 1034203
Sheila, Janice and Karen working together at the same rate can complete a job in 3 1/3 days. Working at the same rate, how much of the job could Janice and Karen do in one day? 
=====
Let rate for each of Sh, Ja, and Ka be 1/t
------
Together rate = 1/(3 1/3) = 1/(10/3) = 3/10
--------
3(1/t) = 3/10
1/t = 1/10
-----
t = 10 days (time each would take to do the job alone)
-----
Ja and Ka rate = (2(1/10) = 1/5 job/day
Cheers,
Stan H.
------------
-----