The area of playground is 5900 sq. meters. What will be the cost of covering it with grass sheet 1cm deep, if cost of grass sheet is $2.80 per cubic meter.	Answers.
A) $ 144  B) $ 150.50  C) $ 165  D) $ 158.60  E) $ 160.70

Rationale: total volume * unit cost = total cost or , 5900 * 0.01 * 2.8 = total cost = 165 = c
Answer: C