The traffic lights at 3 different roads change after every 36 sec, 72 sec, 108 sec respectively. If they all change simultaneously at 9:15 AM then at what time will they again change simultaneously.	Choose the correct choice from the following options.
A) 9:18:36	B) 9:42:15	C) 10:15:24	D) 9:54:12	E) 10:01:20
LCM of 36,72,108 = 216 = 3mnts 36sec   The lines will change every 3m 36sec   The light will change again after 9:15 9:18:36M is = 9:15+0:03:36 = 9:18:36   9:18:36nswer is 9:18:36
<result>A</result>
The traffic lights at 3 different roads change after every 36 sec, 72 sec, 108 sec respectively. If they all change simultaneously at 9:15 AM then at what time will they again change simultaneously.