Question 8: A wheel has a diameter of 650mm. That wheel rolled on a 2,041km long. That wheel has rolled around
The circumference of that wheel is:
650 x 3.14 = 2041 (mm) = 0.002041 km.
The wheel roll number to go all the way is:
2,041: 0.002041 = 1000 (round)
Answer: 1000 rounds.