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? Choose the correct option:
A) 8 : 1
B) 8 : 2
C) 8 : 7
D) 8 : 3
E) 8 : 9
Let the man's rate upstream be x kmph and that downstream be y kmph.   Then, distance covered upstream in 8 hrs 48 min = Distance covered downstream in 4 hrs.   8:7   Answer:8 : 7
<result>C</result>
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?