>There is a race. Participants A and B.
>A finishes in 29 minutes
>B finishes in 35 minutes
>
>A is 6 minutes faster than B.
>B is 6 minutes slower than A.
>
>Is A 17% or 21% faster than B?
>Is B 17% or 21% slower than A?
>
>Title says it all, darn percentages :)

if
a = 100 %
b = 121% but more than 100% cannot be true
if
b = 100%
a = 83%

Seldom are sentences such as this true but this one is:

In this sentence, the number of occurences of 0 is 1,
of 1 is 11, of 2 is 2, of 3 is 1, of 4 is 1, of 5 is 1,
of 6 is 1, of 7 is 1, of 8 is 1, and of 9 is 1.