Question -
Answer -
For “CATARACT”
Distinct letters are
{C, A, T, R} = {A, C, R, T}
For “TRACT”
Distinct letters are
{T, R, A, C} = {A, C, R, T}
As we see letters need to spell cataract is equal to set of letters need to spell tract.
Hence the two sets are equal.