Three alarm clocks ring at intervals of 4, 12 and 20 minutes respectively. If they
start ringing together, after how much time will they next ring together?
Answers
Answered by
0
Answer:
all alarm clock will ring after 1 hour
Answered by
6
Answer:
find LCM for three numbers
Step-by-step explanation:
4 = 2×2
12=3×2×2
20=5×2×2
LCM = 60
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