Question #650f6

1 Answer
Oct 15, 2016

In two hours Uncle travelled 40 miles more than Bobo in the same two hours. But Bobo was only #2//3# of the way after two hours.

Explanation:

So the 40 miles difference represents the last #1//3# of the distance (for Bobo).

Conclusion : The distance#=3xx40=120mi#

Check your answer!
Bobo's speed: #120mi//3h=40mi//h#
Uncle's speed: #120mi//2h=60mi//h#
And the difference is indeed #20mi//h#