Was just wondering if there was a "shorter" method of solving this problem.(adsbygoogle = window.adsbygoogle || []).push({});

nPr = 60.

nPr = n!/(n-r)!

n=?

r=3

Works out to be

n(n-1)(n-2) = 60.

From here on, what different options do I have? I have several ways of solving it, but was wondering what would be the "easiest" method.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Grade 12 Permutations

**Physics Forums | Science Articles, Homework Help, Discussion**