The speed of a boat in still water is 15 km/hr. It goes 30 km upstream and returns downstream to the original point in 7 hours 12 minutes. Find the speed of the stream.
Answers
Answered by
0
Answer:
Here is ur Answer.
Step-by-step explanation:
Given :
Speed of boat in still water =15 km/hr
Let x be speed of the stream in km/hr
Speed of the boat upstream =15−x
Speed of the boat down stream =15+x
Time taken for upstream T1=15−x30
Time taken for downstream T2=15+x30
Given, T1+T2=29
=15−x30+15+x30=29
=30(15−x1+15+x1)=29
=30((15−x)(15+x)15+x÷15−x)=29
=225−x2
Similar questions