Question

A remote village has only one well as its water source. Water is pumped from the well at a
constant rate every year. As a result, the water level in the well has been decreasing linearly with
time. After a recent study, scientists estimated that the well had 5000 liters of water in 2005, and
3500 liters in the year 2015. Looking at this trend, when is the well expected to dry ou

Answer 1

10-----1500L

x----------5000L

x=50000/1500

x=500/15

x=33.3yrs

in 2048 March it will dry up

Answer 2

1500 lit-------->10 year

1 lit--------->10÷1500 year

so...5000 lit ------->(10×5000)÷1500=33.3year

well will be dry after2005+33.3 =2038year and 3 month