Hi Did not really know where to post this but can anyone explain how to do this I am trying to work out the following and cant come up with an answer and explain it please help.

Vodka

I would like to make a final product of 27% abv from 22% abv spirit and 37.5% abv spirit. What % of each strength would I need?

How many litres of each would I need to make a batch size of 95 litres?