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2. ## Re: seconds to hour

Originally Posted by earthdragon
If a device is only running for 0.025 of every second, then how would you work out how long the device runs in total per hour, written in seconds?
How long does the device run in two seconds? Three seconds? Five seconds? n seconds?

How many seconds are there in one minute? Two minutes? Three minutes? 60 minutes?

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4. ## Re: seconds to hour

Yes, this is correct. This is the same thing, but you could also multiply 0.025 by 3600 since there are 60 * 60 = 3600 seconds in an hour.

Fun fact: There are approximately $\pi\cdot10^7$ seconds in a year.