Answer:
The answer is 4 tablespoons.
Step-by-step explanation:
The ratio between the number of tablespoons of salt used and the liters of beans made is:
[tex]\frac{\frac{1}{3}tablespoons}{\frac{1}{4} bean\:litres } =\frac{4}{3} \frac{tablesppons}{bean\:litres}[/tex]
In words this is 4/3 tablespoons per liter.
Now, if Scott's recipe is 1 liter of beans and he wants to make triple the recipe, that means he is making 3 liters of beans. The amount of salt needed for that is:
[tex]\frac{4}{3} \frac{tablesppons}{bean\:litres}*3\:bean\:litres =\boxed{4\:tablespoons.}[/tex]
Therefore, the amount of salt Scott will need to make triple the 1 liter beans recipe is 4 tablespoons.
