find the average speed if a men travels at speed of 24km/hr up and 36 km/hr down at an altitude of 200m

25
32
28.8
30

• avg=2*24*36/(24+36)=28.8
• 11 years agoHelpfull: Yes(9) No(2)
• avg. speed=2xy/(x+y)
  avg=2*24*36/(24+36)
  avg=28.8
• 11 years agoHelpfull: Yes(3) No(2)
• 2xy/x+y;2*24*36/24+35=28.8
• 11 years agoHelpfull: Yes(2) No(1)
• avg speed of man will be (2*24*36)/(24+36)=28.8km/hr
• 11 years agoHelpfull: Yes(1) No(2)
• avg speed=2*a*b/(a+b)
  =2*24*36/(24+36)
  =28.8
• 11 years agoHelpfull: Yes(1) No(0)
• avg speed=2(24)(36)/(24+36)=28.8
• 11 years agoHelpfull: Yes(0) No(0)
• avrg= (2*a*b)/a+b
  2*24*36/24+36=28.8
• 11 years agoHelpfull: Yes(0) No(0)