pls solve this ques Share with your friends Share 0 Shruti Tyagi answered this Dear student, Putting y=-12 in (1)x+y=1⇒x-12=1⇒x=1+12⇒x=32Thus x=32 and y=-12 is the solutionHence Speed of boat in still water=x=32km/hrSpeed of stream=y= -12kn/hr Regards 2 View Full Answer