If I have 534 entries into a contest and I'm told my odds of winning are 1 in 223 how many entries are there?

Question

In a contest I'm told how many entries I have and what my odds of winning are. I'm wondering what the calculation is that I can do to determine the total number of tickets. Can someone help?

Answer 1

To match the given odds, there must be 223 times as many total entries as your personal entries, so the total number of entries must be

223 x 534 = ?