A certain hall contains two cuckoo clocks. If the first clock chirps 20 times per hour and the second clock chirps 7 times per hour, and both clocks chirp for the first time at 2:03 pm, at what time will the first clock have chirped three times as many times as the second clock can chirp per hour?
Choose the correct choice from the following options:
A) 2:53 pm
B) 3:03 pm
C) 3:13 pm
D) 3:23 pm
E) 3:33 pm
The question is asking when the first clock will have chirped 21 times (3*7 chirps).   The first clock chirps once every 3 minutes.   If the first chirp is at 2:03, then the 21st chirp is at 63 minutes after 2:00.   The answer is 3:03 pm.
<result>B</result>
A certain hall contains two cuckoo clocks. If the first clock chirps 20 times per hour and the second clock chirps 7 times per hour, and both clocks chirp for the first time at 2:03 pm, at what time will the first clock have chirped three times as many times as the second clock can chirp per hour?