Three bells ring at intervals of 7,10 and 14 minutes respectively. They begin by ringing together. After how long will they ring together again?
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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 70minutes.
Answered by
1
Answer:
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.
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