Answer: it will take 5.875 hours to move the remaining blocks
Step-by-step explanation:
It takes the construction company 3/4 hours to move move 12 rocks. It means that the time it will take them to move 1 rock is
(3/4)/12 = 0.75/12 = 0.0625 hour
Since the construction company has already moved 50 of the 144 rocks that need to be moved, then the number of blocks remaining to be moved is
144 - 50 = 94 blocks
Therefore, the time it will take them to move 94 blocks is
0.0625 × 94 = 5.875 hours
