Two, trains, one from Bhopal to Kochi and the other from Kochi to Bhopal, start simultaneously. After they meet, the trains reach their destinations after 16 hours and 9 hours respectively. The ratio of their speeds is: 1) 2 : 3 2) 3 : 4 3) 6 : 7 4) 9 : 16

• Sa/Sb = sqrt(Tb/Ta)
  Sa/Sb = 3 : 4
• 4 years agoHelpfull: Yes(3) No(1)
• D1/T=D2/T
  D1/16=D2/9
  D2/D1=9/16
  9:16
• 5 years agoHelpfull: Yes(0) No(1)
• distance =speed*time;
  speed and distances are inverse to each other so
  the answer is 9:16
• 5 years agoHelpfull: Yes(0) No(2)
• s1 : s1
  distance/time distance/time
  x/16 : x/9
  9x : 16x
  9 : 16
• 3 years agoHelpfull: Yes(0) No(1)