Question

A chef has 10 jars of spice, but only 6 will fit on his spice rack. How many ways can the chef arrange 6 jars on his spice rack, choosing from 10 jars?

Answer 1

ok, this is a permutation, because the order of the items matters

the formula for permutations is nPr = n!/(n-r)!, where n is the number of total items and r is the number of items you are picking at once

so, n = 10 jars, because there are 10 total jars, and r = 6, because we are only putting 6 on the shelf at once