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Three bells commence tolling together and ring every 1, 1 1/4 and 1 1/5 seconds respectively. After what time will they first ring together again?​

Respuesta :

Medunno13

Answer:

30 seconds

Step-by-step explanation:

We can convert the ratio into 20:25:24. The least common multiple of 20, 25, and 24 is 600.

Dividing this by 20 again yields 30.