Molly walks to Raven's house, which is 3 miles due east of her house. Then she and Raven walk to the library, which is 4 miles due north of Raven's house. Molly then walks home. If she averages walking 3 miles per hour, how long does Molly spend walking?
A) 1 hour and 40 minutes
B) 2 hours and 20 minutes
C) 3 hours
D) 4 hours
E) 5 hours
Her route forms a 3 - 4 - 5 right triangle
The perimeter = the total distance she walks = 12 (miles)
_______________ = Time
Can you solve this, macabre ???