in a shop, there are three clocks which chime at interval of 15, 20 and 30 minutes respectively. they all chime together at 2 pm. at what time will they all chime together again?
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l.c.m of 15,20,30
IS 5*3*2*2*3*2=360
hence it chimes again after 360 minutes
I.e. after 6 hours I.e. at 8.p.m
IS 5*3*2*2*3*2=360
hence it chimes again after 360 minutes
I.e. after 6 hours I.e. at 8.p.m
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