Applying the chain link method to the previous example gives us the same answer, only now we don’t need to know ahead of time that we should multiply by ten, we only needed to know there are 60 second...Applying the chain link method to the previous example gives us the same answer, only now we don’t need to know ahead of time that we should multiply by ten, we only needed to know there are 60 seconds in one minute, which we use as our conversion factor.