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?
Choose the correct choice from the following choices.
A) 8 mph  B) 5.5 mph  C) 3.5 mph  D) 4 mph  E) 0.5 mph
(1 mph +10 mph)/2 = 5.5 mph   Correct option is: 5.5 mph
<result>B</result>
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?