Light glows for every 15 seconds . How many times did it between 1:57:58 and 3:20:47 am Select.
A) 381 B) 332 C) 383 D) 334 E) 385
the diff in sec between 1:57:58 and 3:20:47 is 4969 sec, 4969/13 = 331.   so total 332 times light ll glow   ANSWER:332
<result>B</result>
Light glows for every 15 seconds . How many times did it between 1:57:58 and 3:20:47 am