Register

Jane can complete a sales route​ by herself in 4 hours. Dave can do the same job in 7 hours. How long will it take them to do it working together?

Jane can complete a sales route​ by herself in 4 hours. Dave can do the same job in 7 hours. How long will it take them to do it working together?
43.6k views
5 votes
Jane can complete a sales route​ by herself in 4 hours. Dave can do the same job in 7 hours. How long will it take them to do it working together?

User Naeemgik
by
8.8k points

1 Answer

6 votes
t/4+t/7=1
28(t/4+t/7)=1
7t+4t=28
11t=28
t=28/11
User Andrewmitchell
by
8.4k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories

Other Questions

How do you can you solve this problem 37 + y = 87; y =
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Link Copied!