Light glows for every 15 seconds . How many max. times did it glow between 1:57:58 and 3:20:47 am.
Choose the correct option: A) 380 times B) 381 times C) 382 times D) 392 times E) 331 times
Time difference is 1hr,22min,49sec=4969sec. So, light glows floor(4969/15)=331 times.   ANSW331 timesR:331 times
<result>E</result>
Light glows for every 15 seconds . How many max. times did it glow between 1:57:58 and 3:20:47 am.