Answer: They will need 81 lb of raisins
Explanations:
If the team uses 2 lb of peanuts for the recipe, they will need 3lb of raisin. That is,
2 lb of peanuts requires 3 lb of raisins
1 lb of peanuts will require 3/2 lb of raisins = 1.5 lb of raisins
If 1 lb of peanuts requires 1.5 lb of raisins
54 lb of peanuts will requre (54 * 1.5) lb of raisins = 81 lb of raisins
The team will need 81 pounds of raisins