Answer:
Yes
Since the time taken t= 7.58 hours required to complete both buildings is less than the 8-hours shift then she can finish the two buildings.
Step-by-step explanation:
Given;
Building A = 3,000 square feet
Building B = 2,460 square feet
Total area of building A and B = 3,000+2460
= 5460 square feet
Rate = 5 seconds per square foot
Time taken to complete both buildings is;
Time t = Total area × rate per area.
t = 5460 × 5 seconds
t = 27300 seconds
t = 27300/60 minutes = 455 minutes
t = 455/60 hours
t = 7.583333333333 hours
t = 7.58 hours
Since the time taken t required to complete both buildings is less than the 8-hours shift then she can finish the two buildings.
