Math, asked by sonals5413, 1 month ago

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 ashwikadandamudi
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