Question 1195139
Greg's speed r
Ruel's speed r+5


Consuming the distance 15 kilometers between them;
{{{r+(r+5)=15/(1/2)}}}

{{{(1/2)(2r+5)=15}}}

{{{2r+5=30}}}

{{{2r=25}}}

{{{r=25/2}}}

{{{r=12&1/2}}} Greg's speed
{{{17&1/2}}} Ruel's speed