Possible combinations - 4 columns with 10 distinct words

Question

Even if there is a solution here, I can't find it, so apologies in advance. My problem is the following. I have 4 columns (A,B,C,D) that have 10 distinct words in them in rows 1-10. I was trying to calculate how many 4-word combinations there are when the condition is that only one word can be selected from each column.

One similar example that I found suggests that the answer might be 40*35*30*25*20, which equals 21 million, but I don't know if it's accurate as the number is quite large. Can anyone please help me out with this?

It should be $10^4$, what is the other example like? – 355durch113 Apr 24 '16 at 20:11 — 355durch113, Apr 24 '16 at 20:11

score 1 · Answer 1 · answered Apr 24 '16 at 20:05

1

You may choose ten words from the first column. For each of those possibilities, you may choose from ten words from the second column, etc. This gives $10^4$ possibilities in total.

answered Apr 24 '16 at 20:05

pancini

19,216

Possible combinations - 4 columns with 10 distinct words

1 Answers1