I bloody loves coaster brakes. At one point 80% of my bikes had coasters, now only 75% of them are so equipped. Got a fresh 2 speed auto on my Electra......
If N remains unchanged...
and you added 1 with coasters, and one without leaving you 9 coaster-braked bikes out of 12. Any which way, you have too many bikes!
He was only popping down to the shops but he could not stop.My dad's first motorbike was one of those, he went all over the county on it .
The "Boris" bikes in the European cities I've visited have all had them. Do the ones in London?
Any which way, you have too many bikes!
Yes, I'm bored.
Your fatal error was to assume that N remains unchanged.If N remains unchanged, that means you have 20 bikes, and changed one from coaster brakes to cable pull brakes and now have 15 with coaster brakes. If N didn't remain the same, the change from 80% to 75% can't have been the result of gaining or losing only 1 bike. N-2 throws up the possibility of you having had 10 bikes (8 with coaster brakes), but then getting rid of 2 of the coaster braked bikes leaving you with 8 bikes, 6 of which have coaster brakes. N+2 suggests you had 10 bikes (8 with coaster brakes), and you added 1 with coasters, and one without leaving you 9 coaster-braked bikes out of 12. Any which way, you have too many bikes!
Yes, I'm bored.