Question

A wheel revolves 1254 times in travelling a distance of 2kms 5 hectometers and 8 meters .find the circumference of the wheel .

Answer 1

1 km = 1000 m

1 hm = 100 m

2 km = 2 ∙ 1 000 m = 2 000 m

5 hm = 5 ∙ 100 m = 500 m

2 km 5 hm 8 m = 2 000 m + 500 m + 8 m = 2 508 m

1 254 rotations cover = 2 508 m

1 revolution covers = 2 508 / 1 254 = 2 m

Circumference = 2 m