Question 203599
Rich can do {{{1/5}}} of a room in a day
Jose can do {{{1/3}}} of a room in a day
Together, they can do {{{1/5 + 1/3}}} room in a day
{{{1/3 + 1/5}}}
{{{5/15 + 3/15}}}
{{{8/15}}} room in a day
So if they can paint 8/15 per day, then
{{{(8/15) * x = 1}}} 
{{{x = 15/8}}} days
Just a little less than 2 days if they work together