An alarm makes a beep after every 30 sec. Another alarm makes a beep after every 32 sec. They beeped together at 7 a.m. The time when they will next make a beep together at the earliest, is
None of these
L.C.M. of 30 and 32 seconds is 960 seconds
960/60 = 16 minutes
They will beep together at 7:16 a.m.
Back To Top