Question

The slope of a soil line is quarter inch per foot if this drainage line is 50 feet long the difference in elevation from one end to the other is most nearly?

Answer 1

Since the slope of the soil line is a quarter of an inch per foot and the drainage line is 50 feet long, then the difference in elevation is:

`50\text{feet}*(1)/(4)(in)/(feet).`

Simplifying the above expression we get:

`(50)/(4)in=12.5in\text{.}`

Recall that:

`1\text{ in=}(1)/(12)feet.`

Therefore:

`12.5in\approx1.04\text{feet.}`

Answer: 12.5 inches= 1.04 feet.