Question 1132247
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Ned and Ralph left the auditorium at the same time but headedin opposite direction. After 2 hours, they were 250 miles apart. If Ned drove faster than Ralph, how fast did Ralph drive?
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Incomplete description.


k, some real positive number
r, the speed of Ralph
r+k, Ned's speed



{{{(r+k)*2+2r=250}}}
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{{{2r+2k+2r=250}}}
{{{r+k+r=125}}}
{{{2r+k=125}}}
{{{highlight(r=(125-k)/2)}}}