Question

Trent can paint a room in 30 minutes, lois can paint a room in 20. how much time would they save together

Answer 1

[01100000100111010]
[0110100101]...Hello User....[010110011110]
Here is your answer...

If Trent takes 30 minutes to paint a room, then the painting done by him in 1 minute will be 1/30.
Similarly, Lois will paint 1/20 of the room in 1 minute.
If they work together, the work they will do in 1 minute
$= \frac{1}{30} + \frac{1}{20} \\ = \frac{2 + 3}{60} \\ = \frac{5}{60} \\ = \frac{1}{12}$
So, they can complete the work in 12 minutes.
This means that Trent save 30-12 = 18 minutes and Lois saves 20-12 = 8 minutes.

[0000100100111]....more questions detected.... [0100111000101]
//Bot UnknownDude is moving on to the next question
//This was an answer from your friendly neighbourhood UnknownDude