There r two bridges at a distance of 1Km. A person starts rowing
upstream from 1st bridge and when he reaches the second bridge he losses
his cap. After 15mins he realises it and turns bach and rows downstream
and catches his hat at the bottom of 1st bridge. Find : The speed of
boat in still water

• speed of boat y,water x;
  15(x-y)+1=15(x+y)
  y=1/30
  speed=1/30*60=20km/hr
• 9 years agoHelpfull: Yes(0) No(3)