As an aside ... the problem has already answered but a general 
unit-conversion tip for next time ...

The best method that I have come across for thinking about unit conversion 
is to stack one unit over the other to form something that equals "one" and 
then multiply by "one" multiple times in order to cancel the units that you 
don't want.

Multiplying something by one doesn't charge it so you can then just write 
the equivalent of 1*1...=1 to get the right unit conversion factor without 
thinking too much about whether something needs to be multiplied or divided.

For instance:
1 HM = 8.4 Gorz can be re written as
1 = 1 HM/8.4 Gorz = 8.4 Gorz/1 HM
and similarly
1= 1 Gorz/0.195 UKM = 0.195 UKM/1 Gorz

So
1= (8.4 Gorz / 1 HM)(0.195 UKM / 1 Gorz)=(8.4/1)(0.195/1)(Gorz/HM)(UKM/Gorz)

Gorz cancels out so you are left with a relations between the units you 
have and the units you want

1=(8.4 * 0.195) UKM / 1 HM
1 HM = (8.4 * 0.195) UKM

This technique works well for much more complex unit chains. Food for 
thought.

/Mike
On Thursday, April 29, 2021 at 8:47:55 AM UTC-3 TiddlyTweeter wrote:

> I am not so good at maths. 
>
> I *do* know that a Hutterite Mile is 8.4 Gorz and one Gorz is 0.195 of a 
> UK Mile.
>
> How in TW would I calculate the size in  UK Miles of one Hutterite Mile?
>
> (To help you calculate *The Hutterite mile song*: 16 Horsepower - 
> Hutterite Mile <https://www.youtube.com/watch?v=n_Uvh_Ts62U>)
>
> Just asking.
> TT
>

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