Final answer:
The total number of consecutive days of work should be 146 days.
Step-by-step explanation:
To calculate the number of consecutive days of work required for the project, we first need to find the total number of hours needed to pour 175,000 yards of concrete. The supervisor estimates that 1,200 yards can be poured per hour, so we divide 175,000 by 1,200 to get 145.8 hours. Since the pouring must continue nonstop until completed, we can round up to the nearest whole day, which gives us a total of 146 days of work needed for the project.