To determine which lake lost the least amount of water, we can calculate the amount lost for each lake and compare the results:
Lake Jensen lost 1/9 of its water.
Lake Parlow lost 10% of its water, which is equivalent to 10/100 or 1/10.
Lake Stockton lost 21/200 of its water.
Let's calculate the amount lost for each lake:
Lake Jensen: (1/9) of its water
Lake Parlow: (1/10) of its water
Lake Stockton: (21/200) of its water, which simplifies to (3/20) of its water.
Now, let's compare these fractions. We want to find the smallest fraction:
1/9, 1/10, 3/20
To make these fractions easier to compare, find a common denominator:
Common denominator = 180
Now, express each fraction with a denominator of 180:
1/9 = 20/180
1/10 = 18/180
3/20 = 27/180
Now, it's clear that Lake Parlow lost the least amount of water because 18/180 (1/10) is smaller than 20/180 (1/9) and 27/180 (3/20).
So, the answer is (B) Lake Parlow.