A motor boat whose speed is 15 km/hr in still water goes 30 km downstream in a river and comes back in a total of 4 hours 30 minutes. Then the speed of the stream (in km/hr) is
Answers
Answered by
3
Answer:
Let the speed of stream be x km/h
Speed downstream= (15+x)km/h
Speed upstream= (15-x)km/h Therefore, 30/15+x+ 30/15-x = 41/2
900/225-x2=9/2
9x²=225
x²=25
x= 5km/hr
Hope this helps
Pls mark as Brainliest
Similar questions
English,
20 days ago
Social Sciences,
20 days ago
Math,
1 month ago
Social Sciences,
1 month ago
Math,
9 months ago