SOLUTION: Jane can paint a room in a new house in 15 hours. Together with her trainee, they can paint the room in 12 hours. How many hours would it take the trainee working by herself to do

Question 941634: Jane can paint a room in a new house in 15 hours. Together with her trainee, they can paint the room in 12 hours. How many hours would it take the trainee working by herself to do the job?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
r = w/t
rate of trainee = 1/x
rates are additive:
1/15 + 1/x = 1/12
1/x = 1/12 - 1/15
x = 1/(1/12 - 1/15)
x = 60 hours
---
Free algebra tutoring live chat:
https://sooeet.com/chat.php?gn=algebra
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations with quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
---
RELATED QUESTIONS
Jim can paint a room in 3 hours. Jane can paint the same room in 5 hours. How long will... (answered by richwmiller,stanbon)

Alice can paint a room in 8 hours. Her assistant can paint the same room in 12 hours. How (answered by richwmiller)

Working alone, Sue can paint a 10' x 12' rectangular room in 12 hours. Joe can paint the (answered by nerdybill)

Sam and Pat are painting a room. Sam can paint the room in 3 hours, Pat can paint the... (answered by stanbon)

one painter can paint a room in 12 hours and another can paint the same room in 10 hours. (answered by ewatrrr)

Hannah can paint a room in 9 hours. Destiny can paint the same room in 12 hours. How long (answered by stanbon,josgarithmetic)

Jose can paint a room in two hours, juanita can paint the room in three hours, how long... (answered by nerdybill)

Tracy can wallpaper 5 rooms in a new house in 15 hours. Together with her trainee they... (answered by josgarithmetic)

Bill can paint a room in 8 hours. Working together with Ed, they can paint the room in 6 (answered by Alan3354,jojo14344)