Subject: mathqa
Question: tabby is training for a triathlon . she swims at a speed of 1 mile per hour . she runs at a speed of 10 miles per hour . she wants to figure out her average speed for these two events . what is the correct answer for her ?
Option: 
A: 5.5 mph
B: 3.5 mph
C: 8 mph
D: 0.5 mph
Answer: A