Answer:
A: 12
B: 36
C: Naomi is faster because she runs a full mile in 8 minutes while Amal runs a mile in 12 minutes.
Explanation:
Since he can run 1/8 miles in 1.5 minutes, times 1.5 by 8 to get a mile. Then times that by 3 to get 3 miles. Now calculate how long it takes Naomi to run a mile, 2 times 4 which is 8 minutes. We know Amal runs a mile in 12 minutes, so Naomi is faster.