Subject: mathqa
Question: tim and é lan are 60 miles away from one another . they are starting to move towards each other simultaneously , tim at a speed of 10 mph and é lan at a speed of 5 mph . if every hour they double their speeds , what is the distance that tim will pass until he meets é lan ?
Option: 
A: 65 miles .
B: 40 miles .
C: 35 miles .
D: 60 miles .
Answer: B