A contractor, Mr. Parker charged his customer $100 for painting a rectangular ceiling of length 5.4m and width 3m. Another contractor, Mr. Lewis charged his customer $115 for painting a rectangular ceiling of length 5.7m and width 3.2m.The quality of work is the same and both contractors charges are based on the area to be painted.
Part A: in terms of charges, which contractor offers a better deal?
Part B: Mr. Parker finished his paint job in 49 minutes. On average how much time did he take to paint every m^2. Express your answer to the nearest minute.
Part C: How long did Mr. Lewis take to finish his paint job if he paints at the same rate as Mr. Parker? Express your answer to the nearest minute.
Parker:
5.4 * 3 = 16.2 sq. m
16.2 / 100 = 0.162 per sq. meter
Lewis:
5.7 * 3.2 = 18.24 sq. m
18.24 / 115 = 0.159 per square meter
Can you take it from there?