question says choose which is greater or are they equal or not enough info

Question

fifty percent can be represented by

n
---
50

a. n

b. 45

answer is b is greater please tell me why

Answer 1

You seem to have TWO questions here:

1. "which is greater ... "
and
2. "fifty percent can be ... "

You need to clarify so a math teacher will know what you're being asked.