Please answer this crazy hard math problem! ?

Question

danny walked three miles to a gas station, it took him 2 hours and 35 min, he stopes and gets candy for three min, then walks to his friends house which is 1 km away. he stays there for three hours then walked 4 miles home, which taked him 5 hours. what was his average speed through out the whole day

Answer 1

First, we need his total distance travelled (note that you put in km and I must convert that to miles)

3 + 0.62 + 4 = 7.62 miles

Next, we need the total time he spent (in minutes):

3 + 180 + 300 = 483 minutes.

Next, we know:

Speed = Distance / Time

Speed = 7.62 / 483

Speed ≈ 0.0158

So his average speed is ≈ 0.0158 miles/minute.