Subject: mathqa
Question: a boat running upstream takes 8 hours 48 minutes to cover a certain distance , while it takes 4 hours to cover the same distance running downstream . what is the ratio between the speed of the boat and speed of the water current respectively ?
Option: 
A: 8 / 5
B: 8 / 3
C: 5 / 8
D: 3 / 5
Answer: B