Question

Jones has a 100-acre farm. he sells it to a developer who is going to build houses. the developer will use 10% of the land for streets, sewers, and parks. he will divide the rest of the land into 120 lots. how many square feet will be in each lot?

Answer 1

The first thing we must do is find the amount of land that will be used for the 120 lots.
 We must remember that 10% of the land will not be used for the lots.
 We have then:
 $100 - (0.10) * (100) = 100 - 10 = 90 acres.$
 Then, we must consider the following conversion of units:
 $1 acre = 43560 ft ^ 2$
 Applying the conversion we have:
 $(90) * (43560) = 3920400 ft ^ 2$
 Then, the amount of square feet for each lot is given by:
 $3920400/120 = 32670 ft ^ 2$
 Answer:
 There will be 32670 square feet in each lot.