Only answer if you know?

Question

china'a landmass covers about 80 or 50 percent of east asia

Answer 1

definitely 50%

Answer 2

China covers 80% of east asia

Answer 3

Tough call, but I'd have to go with 80 percent, judging by this map:

http://en.wikipedia.org/wiki/Image:East_...

Note that it's East Asia, not just Asia as a whole.

Answer 4

50

Answer 5

id say 50%