Ratio of time taken by a sailor to cover some distance upstream and downstream is 4 : 1. If speed of stream is 4.5 km/hr. Then find out speed of boat?

Ratio of time taken by a sailor to cover some distance upstream and do

1.	Ratio of time taken by a sailor to cover some distance upstream and downstream is 4 : 1. If speed of stream is 4.5 km/hr. Then find out speed of boat?
A.	8.5 km / hr
B.	9.5 km / hr
C.	7.5 km / hr
D.	8 km / hr
Answer» D. 8 km / hr

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Ratio of time taken by a sailor to cover some distance upstream and downstream is 4 : 1. If speed of stream is 4.5 km/hr. Then find out speed of boat?

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