Question

To find the depth of a well, a farmer lowers a 50-foot rope vertically into the well. If 15 feet of rope remain above the well, how deep (in feet) is the well?

Answer 1

The well is 35 feet deep.

Explanation:

Given,

Length of rope = 50 feet

Length of remaining rope = 15 feet

Let,

x be the depth of well.

Total length of rope = Length of remaining + Depth of well

`50=15+x\\50-15=x\\x=35`

The well is 35 feet deep.