Two Trians one from Howrah to Patna and other from Patna to Howrah starts simultaneously. after they meet the trains reach their destinations after 9 hours and 16 hours respectively. The ratio of their speeds is ?

a) 2:3

b) 4:3

c) 6:7

d) 9:16

• If train A travelled x kms and Train B travelled, y kms before meeting, then
  Total distance = x+y
  x/A= y/B or x/y = A/B
  and x/B= 16 or x=16B
  and y/A= 9 or y = 9B
  x/y = A/B= 16B/9A
  (A/B)^2= 16/9
  A/B=4/3
• 11 years agoHelpfull: Yes(3) No(1)
• The ratio of their speeds is 4:3.
• 11 years agoHelpfull: Yes(1) No(2)
• b ) 4:3.............two trains meet after 12 hours....so time taken by both trains to complete the journey is 12+9=21 and 12 +16=28 hours respectively...ratio of speed =28:21=4:3
• 11 years agoHelpfull: Yes(1) No(2)