In how many different ways can a shopper purchase 4 ounces each of 4 o

In how many different ways can a shopper purchase 4 ounces each of 4 of the 15 types of grains the food market offers for sale.

In how many different ways can a shopper purchase 4 ounces each of 4 o

In how many different ways can a shopper purchase 4 ounces each of 4 of the 15 types of grains the food market offers for sale.