Help with this maths question?
I don’t want the answer, I would just like to know how I go about working this out as I have forgotten:
Billy likes to go cycling, his bike wheels have a diameter of 90cm.
Billy counts the number of revelations the wheel makes. It makes 140 revolutions, how far has Billy cycled? Give your answer to the nearest metre.
This question is in the General Section. Responses must be helpful and on-topic.