The speed of a boat in still water is 15km/hr. It can go 30 km upstyream and return downstream to the original point in 4 hrs 30 minutes. Find the speed of the stream.
Answers
Answered by
0
hey mate... here's your answer...
plz mark it as brainliest if it helped u
Attachments:
Answered by
0
Hey there!
Let speed of stream = x km/h
∴ Downstream speed = (15+x) km/h
∴ Upstream speed = (15-x) km/h
∴ 30/(15+x) + 30/(15-x) = 4 1/2
→ 900/225-x² = 9/2
→ 9x² = 225
→ x² = 25
→ x = 5
∴ Speed of stream = 5 km/h
Hope it Helps You!
Similar questions