Answer:
3
Step-by-step explanation:
i used process of elimination... 1 and 2 looks unreasonable, and 4 doesn't work cus i tried it irl. i might be wrong though, don't rely on me :>
1 hour: 15
1 and a half hours: 22 and 1/2
2 hours: 30
2 and 1/2: 37 and a 1/2
:)
True
