5 packages of biscuits and 3 of pamphlets.
The real thing to pay attention to is the word *smallest* and the numbers, along with the labels of what they represent. If you can only have who packages of 20, that's a limiting point. Make sure whatever multiple you buy, the biscuits have a value that ends in 0, such as the numbers 20, 30, 40, 50, 60 etc. The first number to multiply 12 by to give you a number like that is to multiply it by 5. That gives you 60. Then multiply 20 by 3 to get sixty.