Light glows for every 13 sec. how many times did it glow between 1:57:58 and 3:20:47 am

• 382
  Time elapsed between 1:57:58 to 3:30:47= 1:22:49
  Total seconds=1*3600+22*60+49=4969
  So glowing at every 13 sec. light will glow 4969/13= 382.23 ~ 382 times
• 11 years agoHelpfull: Yes(16) No(0)
• according to DEVENDRA M solution ans is must be 383 times because start with light glow...
• 11 years agoHelpfull: Yes(5) No(2)
• 748
  97249/13=748
• 11 years agoHelpfull: Yes(0) No(4)
• there we requre 25
  races
• 10 years agoHelpfull: Yes(0) No(0)
• light will glow 377 times
  time elapsed = 1h:21min:49sec
  no of seconds = 60*60+21*60+49=4909
  so no of times light glow =4909/13=377.6
  upto 4901 sec light glows 377 times and after 4901 to 4909 it wont glow so ans 377
• 9 years agoHelpfull: Yes(0) No(0)
• if it starts glowing from 1:57:58
  the very next glow occur at 1:58:11 an so on
  total time between time interval is 8569 sec
  8569/13 gives 659 times it glows
• 9 years agoHelpfull: Yes(0) No(0)
• time between 1:57:58 and 3:20:47 am
  
  and converting hours to mins and mins to sec
  
  finally sec/13 gives the number of times that light glow
• 7 years agoHelpfull: Yes(0) No(0)