There are twelve consecutive flags at an equal interval of distance. A man passes the 8th flag in 8 seconds. How many more seconds will he take to pass the remaining 4 flags ?

• This is more logical ...
  
  Let the 1st flag 1 placed at the origin ....
  in crossing 8 flags he traveled 7 distances....
  s=d/t
  =7/8
  
  time for 4 flags t=(d/s)=4/(7/8)=(4*8)/7=4.5714285714285714285714285714286
  
• 11 years agoHelpfull: Yes(7) No(0)
• let the 1st flag i placed at the origin and the remaining on the X-axis.......then the cordinate og 8th flag is (7,0)..therefore distance travelled is 7 units in 4 second ......and cordinate of 12th flag is (11,0)..there r 4 units ....so tym taken is (8*4)/7=4.57 secnds
• 14 years agoHelpfull: Yes(6) No(0)
• 4.57 seconds
• 15 years agoHelpfull: Yes(3) No(2)
• 4
• 15 years agoHelpfull: Yes(1) No(4)
• 4.56 seconds
• 14 years agoHelpfull: Yes(1) No(1)
• et the 1st flag i placed at the origin .... in crossing 8 flags he traveled 7 distances.... in 8 secs , So to travel 1 flag time required : 8 / 7
  for 4 more flags time required : (4) * (8 / 7)= 4.5714285714285714285714285714286
• 11 years agoHelpfull: Yes(1) No(1)