# Algebra

mark can paint the fence in 40 minutes and manny can paint the fence in 30 minutes together how long will it take to paint the fence

1. 👍 0
2. 👎 0
3. 👁 149
1. mark does 1/40 of the job and manny does 1/30 of the job. Together:1/40+1/30=7/120 of the job in a minutes,time to do the entire job is 120/7=17mins approx

1. 👍 0
2. 👎 0
posted by Kosy

## Similar Questions

1. ### math

Initially two painters are available to paint a picket fence. Peter alone could paint the fence in 6 hours; Pat alone in 3 hours. It is decided that they will work simultaneously to paint the fence. Before they start, however,

asked by borat on April 28, 2013
2. ### math

Lexie is painting her fence. each foot of the fence requires 3/5 of a gallon of paint. Her fence is 8 3/4 feet long.what is the total amount of paint,in gallons Lexie needs to paint her fence?

asked by jamie on January 18, 2017
3. ### Maths

Mr Jones takes 4 hours to paint a fence. Mark his son takes 6 hours to paint the same fence. How long does it take for them both to paint the fence?

asked by Robert on March 7, 2012
4. ### Math

Sally can paint a fence in hour 30 minutes, but she calls Max to help and together they paint the fence in hour. How long would Max take if he were to paint the fence alone?

asked by Reyna on August 4, 2016
5. ### Quantitave Methodology

Rashid can paint two square metres of fence in ten minutes. therefore, the time it will take him to paint a fence three metres high and 26 metres long will be?

asked by tshepo on August 17, 2012
6. ### math

If one gallon of paint covers 350 square feet,will 8 gallons of paint be enough to paint the inside and outside of the fence?

asked by takylah on February 2, 2016
7. ### painting

Joe had eight sections of fence to paint. He painted 2/3 of each section in one hour. How many hours did it take him to paint all the section of the fence?

asked by Rochelle on June 8, 2011
8. ### Intermediate Algebra

A painter can paint a fence in 12 hours working alone. His apprentice who works slower can paint the same fence in 24 hours. How many hours would it take to do the job if they worked together?