Question 993390

Hi,

I would like to say thank you for your help in advanced!

So my question is : If a carpenter can roof a house in 10 days and another can do the same roof in 14 days, how many days will it take if they work together?

I would like you to tell me where I went wrong.

Here is the equation that I came up with.

1/10 + 1/14 = 1/t

I know I am missing something because I keep having issues with these types of problems. 

Thanks,
Anthony 
<pre>That equation is correct!! Good job!
This is what you have: {{{1/10 + 1/14 = 1/t}}}
7t + 5t = 70 -------- Multiplying by CD, 70t
12t = 70
t, or time = {{{70/12}}}, or {{{highlight_green(5&5/6)}}} days