David and Roy are bursting firecrackers. David's crackers explode every four minutes and Roy’s explode every five minutes. Both of them started at 9 a.m. in the morning. What is the earliest time when both their firecrackers will explode together?
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Answered by
3
9:20 am
ping me up if my answer is correct
Answered by
0
let's do it
Step-by-step explanation:
it will be 11
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