SOLUTION: Mr. Mann can lay a walk in 6 days, and Mr. Gregory in 8 days. How long will it take Mr. Mann alone to finish the job after both have worked 3 days ?

Question 937610: Mr. Mann can lay a walk in 6 days, and Mr. Gregory in 8 days. How long will it take Mr. Mann alone to finish the job after both have worked 3 days ?
Found 2 solutions by TimothyLamb, MathTherapy:
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
r = w/t
rates are additive:
r = 1/6 + 1/8
r = 0.29166666666
---
fraction of the job completed when both men work together for 3 days:
w = rt
w = 0.29166666666*3
w = 0.87499999998
---
fraction of the job remaining after both men work together for 3 days:
w = 1 - 0.87499999998
w = 0.125
---
time it will take Mr. Mann working alone to complete the remaining job:
t = w/r
t = 0.125/(1/6)
t = 0.75 days
---
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
---
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!
Mr. Mann can lay a walk in 6 days, and Mr. Gregory in 8 days. How long will it take Mr. Mann alone to finish the job after both have worked 3 days ?

Fraction of work done by both, working together:
Time Mann takes to complete remaining of work: day
You can do the check!!
===================
If you need a complete and detailed solution, let me know!!
Send comments, �thank-yous,� and inquiries to �D� at MathMadEzy@aol.com.
Further help is available, online or in-person, for a fee, obviously.
For FREE info and answers to questions about the ASVAB exam, the NYS 3 � 8 city/state wide exams,GENERAL
MATH and HOMEWORK QUESTIONS, or MATH QUESTIONS related to the Regents Integrated Algebra,
Regents Geometry, Regents Algebra 2/Trigonometry, SHSAT, COOP/HSPT/TACHS, PSAT, SAT, ACT, SSAT/ISEE,
GRE, CLEP, and the TASC/GED, you can visit: http://asvabstudyzone.freeforums.net/.
RELATED QUESTIONS
Mr. Alan can finish a job in 3 hours by himself,And Mr. Brian can finish the job by... (answered by richwmiller)
In solving the problem below, use a variable/s to represent the unknown quantity or... (answered by josgarithmetic)
solve. Round to the nearest tenth of necessary Mr. Jansen can shingle a roof in... (answered by josmiceli)
Working together, Mr. Kent and Mr. Wayne can complete a job in 5 hours. If Mr. Wayne... (answered by Theo,richwmiller)
A company contracts to paint 3 houses. Mr.Brown can paint a house in 6 days while... (answered by drk)
Mr.X can finish a job in nine hours. After working for five hours, he decided to stop.... (answered by josgarithmetic,stanbon)
Danny can finish a job in 10 days. Together, Miguel and Danny can finish the same job in... (answered by rothauserc,ikleyn)
Mr Asif can do a job in 10 days. After working 3 days, he hires a helper and the two... (answered by ankor@dixie-net.com)
Mr Udofoa can clear a field on 6 days while Mr udo can clear the same field in 3 days.... (answered by josgarithmetic,ikleyn)