what is the next possible time both alarm clocks will ring together

Question

eddie sets his alarm clock to ring every 6 minutes. Jenny sets her alarm every 8 minutes. Both alarm clocks rang at 11.50am. What is the next possible time that the two alarm clocks will ring together again?

Answer 1

 

we have find LCM of 6 and 8

 

LCM of 6 and 8 is 24

 

So 

 

so after 24 minutes both alarm will rang

 

11.50 am + 24 minutes = 12.14 pm

 

So both alarm will rang together at 12.14 pm