How many different ways could a baking contest be judged if 15 pies are entered and 4 ribbons are awarded?

This is a question of combination since it does not take into account the order of the pies. The answer would be 1365. There are 1365 ways a baking contest ways can be judged if 4 ribbons are awarded with 15 pie entries.

In case you need the order, then the permutation answer would be 32760.