I've fixed the typos in the description
Thanks

Hi, this issue should both be solved now, thanks

Hi, so it's a string because diving scores are displayed as numbers with 2 digits after the decimal like the results in this table for example:
https://en.wikipedia.org/wiki/Diving_at_the_2016_Summer_Olympics_%E2%80%93_Men%27s_3_metre_springboard

So the kata is reflecting this, I've added a bit more to the description to clarify this.

Yes the tariff is always 1 decimal place and the input scores always end in 0 or 0.5 so you will never get a result with more than 2 decimal places. But I've made the output a string as the kata is asking for the output to still show 2 demical places in situations when the result is less than 2 demical places, so "64.00" instead of 64 for example

Hi, thanks for the feedback
These issues should both be solved now

I think it could do with a lot more test cases including random ones