Question 1208102
Twenty drops, dilute water solutions, is typically taken as 1 milliliter.

The faucet leaking 60 drops per minute is then leaking {{{60/20=3}}}  milliliters per minute.  The 60 is two significant figures, and the 20 is at best, two significant figures.   With this and the rest of the calculational setup, the answer should have at best just two significant figures, so  130 liters per those 30 days.


https://en.wikipedia.org/wiki/Significant_figures