Very important for tomorrow help please urgent ♀️
Three bells ring at intervals of 15, 20 and 30 minutes. If they all ring at 11 a.m. together, at what time will the next ring together?
Answers
Answered by
1
I think that LCM should be taken and 12:15 will be the answer
MagicalRia:
U mean that I have to divide 12 and 15
I did not understand
Just raw guess that the next bell will rang at 12:55.
:
Find the least common multiple of 10, 15, 20,
Prime factor
10: 2*5
15: 3*5
20: 2*2*5
then
2*2*3*5 = 60 is LCM
:
60 min from 11 is 12p.m.
Find the least common multiple of 10, 15, 20,
Prime factor
10: 2*5
15: 3*5
20: 2*2*5
then
2*2*3*5 = 60 is LCM
:
60 min from 11 is 12p.m.
It is the exact definition and correct answer.
Answered by
0
Take l.c.m of three numbers and add it with 11.00a.m you will get the answer.
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