Light glows for every 13 seconds . How many times did it between 1:57:58 and 3:20:47 am Choose one: A) 381 B) 382 C) 383 D) 384 E) 385
the diff in sec between 1:57:58 and 3:20:47 is 4969 sec, 4969/13 = 382.   so total 383 times light ll glow   ANSWER:383
<result>C</result>
Light glows for every 13 seconds . How many times did it between 1:57:58 and 3:20:47 am