Question 1025324
{{{2x+x=27}}}
{{{3x=27}}}
{{{x=9}}}
So one traveled 9 km in 3 hours, the other traveled 18 km in 3 hours.
{{{R*t=D}}}
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{{{R[1]*3=9}}}
{{{R[1]=9/3}}}
{{{R[1]=3}}}{{{kph}}}
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{{{R[2]*3=18}}}
{{{R[2]=18/3}}}
{{{R[2]=6}}}{{{kph}}}