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If a machine can dig a hole 1.75 m deep in one hour, how many hours will it take to reach a depth of 112 m?

  1. 60

  2. 65

  3. 70

  4. 80

The correct answer is: 60

To determine how many hours it will take for the machine to dig a hole 112 m deep, you start by calculating how deep the machine digs in one hour, which is given as 1.75 m. To find the total number of hours required to dig 112 m, you divide the total depth desired by the depth dug per hour: 112 m / 1.75 m/hour = 64 hours. This result indicates that the machine will take 64 hours to reach a depth of 112 m. While the answer provided is incorrect, the correct option is not explicitly listed among the choices. The choices given might represent a range of estimates or possibly an error in the provided options. It’s important in a test scenario to confirm calculations and ensure the options reflect potential correct outcomes. In this case, recognize that the mathematical operation clearly shows the correct number of hours is 64, and none of the options match this precisely.