Problem: Two boys and start at the same time to ride from Port Jervis to Poughkeepsie, 60 miles away. travels 4 miles an hour slower than . reaches Poughkeepsie and at once turns back meeting 12 miles from Poughkeepsie. The rate of was:
Answer Choices:
A. mph
B. mph
C. mph
D. mph
E. mph
Solution:
Notice that and both travel for the same amount of time. Since travels miles while travels miles, we have