Three alarm clocks rings at an interval of 6 ,15,30 min if they all start at 7 am then when they will ring together again
Answers
Answered by
0
Step-by-step explanation:
Change the Numbers According To Your Question.
Clocks will ring together again at L.C.M of 4,12,20
⇒LCM=4×1×3×5
=60
⇒ clocks ring together after 60 minutes.
Answered by
1
Answer:
7:30 am
Step-by-step explanation:
L.C.M. of 6,15 and 30 min
= 30 min
there, after 30 minutes all alarm clock ring together again = 7am + 30 minutes
= 7:30 am
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