Question

A light has seen at intervals of 13 seconds. It was seen for the first time at 1 hour 54 minute 50 scond A.M . and Last time at 3 hours 17 minute 49 second A.M .how many times was the light seen ?

Answer 1

First Time = 1 hour 54 mins 50 seconds

Last Time = 3 hours 17 mins 49 seconds

Duration = (3h 17min 49s) - (1h 54 min 50 s)

                = 1 h 22 mins 59 s

                = 4979 seconds    

Number of 13 seconds interval = 4979 ÷ 13

                                                   = 383     

Total number of times the light is seen = 383 + 1

                                                                 = 384    

Answer: The light was seen 384 times