atrain can cross a 340 m long platform in 30 seconds where as it can cross a 370 m long platform in 32 seconds.find its length

• 110 m
  
  1st case: (340 + L)/30 = speed
  2nd case: (370 + L)/32 = speed
  
  => 32(340 + L) = 30(370 + L)
  => 32L - 30L = 30*370 - 32*340
  => L = 110 m
• 10 years agoHelpfull: Yes(0) No(0)