She can make 20 batches of pancakes with 4 gallons of milk.
Solution:
Given that,
Quantity of milk in refrigerator = 4 gallons
Quantity of milk required to make a batch of pan cake = [tex]\frac{1}{5} \ gallon[/tex]
Need to determine how many batches of pan cake Mrs.White can make using 4 gallons of milk.
Number of batches which can be made by [tex]\frac{1}{5}[/tex] gallons of Milk = 1
So number of batches which can be made by [tex]\frac{1}{5} \times 5=1 \ gallons \ of \ milk = 1 \times 5=5[/tex]
So, number of batches which can be made by 4 gallons of milk = 4 multiplied by the number of batches which can be made by 1 gallons of milk = [tex]4 \times 5=20[/tex]
Hence, she can make 20 batches of pancakes.
