Question

Yancey collects plastic banks .He has three different banks: a pig, a cow, and a horse. How many ways can Yancey arrange his banks on a shelf.

Answer 1

pig, cow, horse

pig, horse, cow

horse, pig, cow

horse, cow, pig

cow, pig, horse

cow, horse, pig

Answer 2

let h = horse, let c = cow, let p = pig

so,

hcp

hpc

cph

chp

phc

pch

so, that is 6 different ways she can arrange it.