30. Three bells rings at intervals of 12 min, 14 min and 18 min, respectively. They started
ringing simultaneously at 7:00 am. What will be the next time when they all ring simultaneously?
(a) 11:12 am (b) 10:12 am
(C) 12:12 pm (d) 12:00 pm
Answers
Answered by
3
Three bells 7,10,14 minutes
They will be ringing after L.C.M of (7,10,14) minutes
Factorise 7,10,14
7=7
10=5×2
14=7×2
⇒ L.C.M (7,10,14)=7×2×5=70
∴ They will be ringing together after 70 minutes.
Answered by
2
Answer:
l o l lol l o l
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