Fraction equation of mathematics problem in grade two of junior high school In the process of urban renewal, a 2400m long road needs to be renovated. In order to reduce the impact of construction on urban traffic, the actual work efficiency is 20% higher than the original plan. As a result, the task is completed 8 hours ahead of schedule. How many meters per hour is the original plan?

Fraction equation of mathematics problem in grade two of junior high school In the process of urban renewal, a 2400m long road needs to be renovated. In order to reduce the impact of construction on urban traffic, the actual work efficiency is 20% higher than the original plan. As a result, the task is completed 8 hours ahead of schedule. How many meters per hour is the original plan?

If the original plan is x meters per hour, the actual plan is 1.2x meters per hour
2400/x-2400/1.2x=8
2400/x-2000/x=8
400/x=8
8x=400
x=50