Solve
-An Express and Local Train Leave GraysLake at 3 $= 50 \mathrm { mph }$

Multiple Choice

Solve.
-An express and local train leave GraysLake at 3 P.M. and head for Chicago 50 miles away. The express travels twice as fast as the local and arrives 1 hour ahead of the local. Find the speed of each train.

A) Express's rate $= 50 \mathrm { mph }$ and local's rate $= 25 \mathrm { mph }$ .
B) Express's rate $= 25 \mathrm { mph }$ and local's rate $= 12.5 \mathrm { mph }$ .
C) Express's rate $= 60 \mathrm { mph }$ and local's rate $= 30 \mathrm { mph }$ .
D) Cannot be determined with information given.