Answer: The required number of containers is 12.
Step-by-step explanation: Given that Sophie had
quart of peanut butter and she divides the Peanut butter into containers that hold
quart.
We are to find the number of containers that she can fill.
We will be using the UNITARY method to solve the problem.
We have
Number of containers that hold
quart = 1.
So, the number of containers that hold 1 quart will be

Therefore, the number of quarts that hold
of peanut butter is given by

Thus, the required number of containers is 12.