Answer:
The letter that comes next in this series is S.
Step-by-step explanation:
E F G H I J K (the alphabet order)- first order
Y X W V U T S (the alphabet order backwards)-second order
The question E Y G W I U K skips every other letter from the first order and replaces it with a letter from the second order.
I tried my best to explain it.
I hope you understand.