Answer:
12 KM
Step-by-step explanation:
One way :
Distance Greg runs in 20 min = 4
Number of 20 min in a hour= 60 / 20 = 3
Distance Greg runs in a hour= 4 x 3 = 12 km
Another way :
Distance Greg runs in 20 min = 4
Distance Greg runs in 1 min = 4 / 20 = 0.2
Distance Greg runs in a hour= 60 x 0.2 = 12 km
