Question

1. The speed of a boat ishlab
72 km and back to its starting poys 18 heurs
Find the speed of stream​

Answer 1

Answer:pls mark as brainliest

Step-by-step explanation:Let Speed of boat =X km/hr

Speed of stream =Y km/hr

Speed of downstream (X+Y)=72/8=9km/hr

Speed of upstream (X-Y)=84/12=7km/hr

X+Y=9

X-Y=7

Using elimination method

X=8

Y=1

Answer speed of boat =8km/hr

Speed of stream =1km/hr

Answer 2

Answer:

Speed=144/8*60

Speed=144/48

Speed=3km/hrs

Step-by-step explanation:

I think so