Light glows for every 30 seconds . How many max. times did it glow between 1:57:58 and 3:20:47 am.	Answers.
A) 380 times
B) 142 times
C) 382 times
D) 392 times
E) 165 times
Time difference is 1hr,22min,49sec=4969sec. So, light glows floor(4969/30)=165 times.   ANSW165 timesR:165 times
<result>E</result>
Light glows for every 30 seconds . How many max. times did it glow between 1:57:58 and 3:20:47 am.