15. Three bells ring at intervals of 16, 18 and 20 seconds respectively. If they all ring at
11 a.m. together, at what time will they ring next together?
Answers
Answered by
1
Step-by-step explanation:
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.
Similar questions