What is the time taken by a person walking at the speed of 4km per hour to take two rounds of a circular garden of form radius

• distance travelled = 2*2*pi*r, where r is the radius of the circular garden.
  = 4*pi*r.
  speed = 4km/hr.
  so, time taken = distance travelled/speed
  = 4*pi*r/4
  = pi*r ( hours ).
• 9 years agoHelpfull: Yes(2) No(0)
• Distance travelled,d = 2*pi*r+2*pi*r = 2*pi*r
  speed,s = 4km/hr
  
  time taken = d*s
  =(16*pi*r)hours , where r is the radius of circular garden in km
• 10 years agoHelpfull: Yes(0) No(2)
• as distance covered by a person is two round complete to form radius i.e., 2* 2 pi r
  so, time = distance / speed
  4 pi r/ 4= pi* r hr.
• 9 years agoHelpfull: Yes(0) No(0)