Answer:
I would say the answer is Lulu.
Explanation:
I say this because I think Lulu has a greater ratio than hang. Also because Lulu can read 10 pages every 13 minutes and it would take Hang 16 minutes to read 10 pages. I am not 100 percent sure, but I believe my answer may be correct. I hope I could help! Also please note that this answer may be wrong. (: