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## 'Watching the Wheels Go 'round and 'round' printed from http://nrich.maths.org/

The front wheel on the penny-farthing bicycle has a
circumference of 200 centimetres.

If you were describing the circumference in metres, what would
it be?

How many times would the wheel turn if the bicycle travels one
kilometre?

The back wheel on the cycle has a 50 centimetres
circumference.

If you were describing this circumference in metres, what
would it be?

How many times would this wheel turn if the bicycle travels
one kilometre?

Would the large or the small tyre get more wear and tear on a
long journey?