Answer:
66 cups of fruit juice will be required .
Step-by-step explanation:
According to the question ,
90 Cups of fruit juice is required for making of 210 cups of punch .
So,
For making of one cup of punch ,
[tex]\frac{90}{210}[/tex] = [tex]\frac{3}{7}[/tex] cups of fruit juice will be required ,
Thus,
For making of 154 cups of punch ,
Total number of cups of fruit juice required will be [tex]\frac{3}{7}[/tex]×154.
= 66 cups.
Thus a total of 66 cups of fruit juice will be required.