A man traveled a certain distance at the rate of 15 miles an hour and came back at the rate of 10 miles an hour. What is his average speed ?

• Average speed = 2*15*10/(15+10) = 300/25 = 12 mph
• 12 years agoHelpfull: Yes(38) No(1)
• avg speed = 2*15*10/(15+10) = 300/25 = 12 miles an hour
• 12 years agoHelpfull: Yes(14) No(1)
• average speed=2xy/x+y speed=2*15*10/15+10
  =12
• 10 years agoHelpfull: Yes(5) No(0)
• If two speeds are given and again the speed is asked then the formula is 2xy/x+y
• 8 years agoHelpfull: Yes(1) No(0)
• formula to calculate avg speed is 2xy/x+y
• 7 years agoHelpfull: Yes(1) No(0)
• avg speed=total distance/total time
  =15+10/2=12.5 miles pr hour.
• 8 years agoHelpfull: Yes(0) No(2)
• avg speed=2xy/x+y=2*10*15/10+15=12mph
• 7 years agoHelpfull: Yes(0) No(0)
• distance cover by man in one hours =15 miles(when going)
  distance cover by man in one hours =10 miles(when coming)
  total distance =15+10=25
  then avs =sum /no
  25/2=12.t5
• 6 years agoHelpfull: Yes(0) No(0)