Answer:
They need do add 2.5 or 5/2 cup of sugar so that large batch tastes the same.
Step-by-step explanation:
Consider the provided information.
A small, test batch of lemonade used one fourth cup of sugar added to one cup of water.
Therefore the ratio of sugar and water is [tex]\frac{1}{4} : 1[/tex]
This can be written as:
[tex]\frac{suger}{water}=\frac{0.25}{1}[/tex]
After confirming it tasted good, a larger batch is going to be made with the same ratios using 10 cups of water.
Now multiply both the sides by 10 in above expression.
[tex]\frac{suger}{water}=\frac{0.25\times 10}{1\times 10}[/tex]
[tex]\frac{suger}{water}=\frac{2.5}{10}[/tex]
Hence, they need do add 2.5 or 5/2 cup of sugar so that large batch tastes the same.