in a stream running ar 2km/hr a motor boat goes upstream and back again to the starting point in 33 min .find the speed of the motar boat in still water?

• I think the distance travelled by boat in each direction is also required.
• 12 years agoHelpfull: Yes(21) No(1)
• In a stream running at 2kmph,a motar boat goes 6km upstream and back
  again to the starting point in 33 minutes.find the speed of the motarboat in still
  water.
  Sol.let the speed of the motarboat in still water be x kmph.then,
  6/x+2 +6/x-2=33/60
  11x
  2
  -240x-44=0
  11x
  2
  -242x+2x-44=0
  (x-22)(11x+2)=0
  x=22.
• 12 years agoHelpfull: Yes(17) No(3)
• let x b speed of boat in still water,,,
  [6/(x+2)]+[6/(x-2)]=33/60,,,,,,,,,solve dis u ll get answer 22
• 12 years agoHelpfull: Yes(3) No(0)
• yes distance is requred
  by d way d=6 is given???????????????
• 12 years agoHelpfull: Yes(1) No(1)