# Three bells commence tolling together and they toll after 0.25,0.1 and 0.125. After how many seconds will they toll together again.

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by Tirkey

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by Tirkey

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25

Now that there are all ones in the end, multiply all the factors on the left.

This equals to 2500 .

We multiplied everything by 1000 in the beginning, so now we have to divide it by 1000. That then becomes 2.5. The lcm of 0.25, 0.1 and 0.125 is 2.5. so, at 2.5 seconds, the bells will toll together again.