Qus-
while covering a diatance of 24 km, a man was noticed that after walking 1h and 40 minutes, the distance covered by him was 5/7 of the remaining distance. What was his speed in meters per seconds.

• let distance x
  distance covered in 1h40m =5x/3km.
  remaining distance = (24-5/3)
  than
  5x/3 = 5/7 (24-5x/3)
  x=6km/h
  now 6 * 5/18 = 5/3 = 1.67 m/sec.
  
  speed is 1.67m/sec.
• 9 years agoHelpfull: Yes(1) No(0)
• ans 0.25 meters/sec
  24 km=distance traveled in 100 min+5/7(24-distance traveled in 100 min)
  let speed =s
  time=100min=6000sec
  24000=6000*s+5/7(24000-6000*s)
  24*2/7=s*6*2/7
  s=0.4m/sec
• 9 years agoHelpfull: Yes(0) No(2)