SOLUTION: Barry can do a certain job in 8 hours, whereas it takes Samuel 12 hours to do the same job. How long would it take them to do the job working together?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Barry can do a certain job in 8 hours, whereas it takes Samuel 12 hours to do the same job. How long would it take them to do the job working together?       Log On


   



Question 904588: Barry can do a certain job in 8 hours, whereas it takes Samuel 12 hours to do the same job. How long would it take them to do the job working together?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Re TY, sry for the typo. thanks for the heads Up
x the time it take them to do the job working together
1%2F%288hr%29+%2B+1%2F%2812hr%29+=+1%2Fx |Multiplying thru by 24x so as all denominators = 1
3x + 2x = 24hr
++highlight_green%285x%29+ = 24hr
x =4.8hr, time it take them to do the job working together