If Rohit has 5xy toffees and Shantanu has 20yx toffees, then Shantanu has 15xy more toffees.
Froom the question,
Rohit has 5xy toffees
Shantanu has 20yx toffees
Then, difference between the toffees of both Rohith and shantanu = 20yx – 5xy = 15 xy
Then Shantanu has 15 xy more toffees.