Question

3. Alexis and her little sister began biking at the same time in the same direction from Grinnell on

RAGBRAI. Alexis rode 15 miles per hour, but her sister could only ride 12 miles per hour. When will
they be 10 miles apart?

Answer 1

They will be 10 miles apart on the 4th hour

Explanation:

4hr=60 (15miles)

4hr=48 (12miles)

60

-48

12 more than 10 hours apart