Question 884221
Find the rate at which each can wrap gifts.
Ric does 38 in 4 hours, so ric can do {{{38/4 = 9.5}}} per hour
Vic does 27 in 3 hours, so vic can do {{{27/3 = 9}}} per hour
Together they can do {{{9.5 + 9 = 18.5}}} per hour

So how long does it take to wrap 37??

{{{37 = 18.5 * hours}}}
{{{37/18.5 = hours}}}
{{{2 = hours}}}

2 hours