Kelly and Tom started walking from the same starting point butin the opposite directions along a straight path. Kellys averagespeed was 4km/h faster than Toms. After walking for 3hours theywere 40km apart. What was Kellys average speed?
Your email address will not be published. Required fields are marked *
Comment *
Name *
Email *
Website
Save my name, email, and website in this browser for the next time I comment.
Δ