Answer: The laborer charges $100.00 for a day's weeding contract and was paid $1500.00 for weeding 5 acres of land. This means he received $1500.00 - $100.00 = $1400.00 for weeding 5 acres of land.
The amount he received per acre is $1400.00 / 5 acres = $280.00 per acre.
So the answer is 280