Applications of Linear Equations | Work Problems

We solve some applications of linear equations. In particular, we solve the following two work problems:
1. Andy can paint a fence in 4 hours, and Ben can do the job in 6 hours. If they work together, how long will it take them to paint the fence?
2. One pipe can fill a tank twice as fast as a second pipe. When both pipes are opened, they fill the tank in 9 minutes. How long would it take to fill the tank if only the faster pipe is used?

[raymondvargas]

Its always nice to be back.. thank you again for the time for this video.. this very help especially kids attend study from home.. keep it up and safe..
From V fam..

[dkbswisdom]

Soopr explanation sir.. But having one doubt.. In the 1st sum, ans is 2.4 hr.

How would u taken it as 2 hours and 24 min..

My doubt is that 24 min? 🤔🤔kindly reply sir

[parthjoshi]

Thanks sir it was very easy to understand 😁
By Parth Joshi

[creativepallet]

sir i don’t understand wound x=3 i second question 🤔🤔🤔🤔

[OK_Boshkash]

you have to let us know how to get the LCD and how did you make it from 27 equal 2x to x equal 27 over 2 more details come on.
🤧🤧