Answer:
21500 m
Step-by-step explanation:
We will divide this point into four parts and we will pass it by the meter:
Total: (20 km * 1000 m / 1 km) + (75 hm * 100 m / 1 hm) + (75 dam * 10 m / 1 dam) + 250 m = 20000 m + 7500 m + 750 m + 250 m = 28500 m
First stage: (5 km * 1000 m / 1 km) + (5 hm * 100 m / 1 hm) = 5000 m + 500 m = 5500 m
Second stage: (1 km * 1000 m / 1 km) + (50 dam * 10 m / 1 dam) = 1000 m + 500 m = 1500 m
The value of the third stage would be the subtraction between the total and the first and second stage:
Third stage: 28500 m - 5500 m - 1500 m = 21.500 m
He traveled 21500 meters in the third stage
