The speed of the boat in still water is 8 km/h. It can
go 5 km upstream and 22 km downstream in
3 hours. Find the speed of the stream.
Share
The speed of the boat in still water is 8 km/h. It can
go 5 km upstream and 22 km downstream in
3 hours. Find the speed of the stream.
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
13.5 this is the answer
Answer:
3 km/hr or 8/3 km/hr
Step-by-step explanation:
Time in upstream + downstream =3 hrs
Speed upstream= 8-x
Speed downstream = 8+x
5/(8-x)+22/(8+x)=3
5(8+x)+22(8-x)=3(8+x)(8-x)
40+5x+176-22x=192-3x²
3x²-17x+24=0
Solving quadratic equation, x= 3 km/hr or x= 8/3 km/hr
♣ PLEASE MARK THE ANSWER BRAINLIEST ( IF U R SATISFIED ) ♣