Anushika says to Shagun, "I am 3 times as old as you were 3 years ago". How old is Anushika? I. Shagun’s age 17 years from now is the same as Anushika’s present age. II. Anushika’s age nine years from now is 3 times Shagun’s present age.

Data sufficiency about ages. Let S = Shagun's present age, A = Anushika's present age. From question: A = 3(S-3), so A = 3S - 9. Statement I: Shagun's age 17 years from now equals Anushika's present age: S + 17 = A. Combining with A = 3S - 9 gives S + 17 = 3S - 9, solving gives 2S = 26, S = 13, then A = 30. Statement I alone is sufficient. Statement II: Anushika's age 9 years from now is 3 times Shagun's present age: A + 9 = 3S. Substituting A = 3S - 9 gives 3S - 9 + 9 = 3S, which simplifies to 3S = 3S - an identity giving no unique solution. Statement II alone is insufficient. Therefore Only I is correct.