The question given below consists of two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read all the statement and answer the question. Seven boxes, S, T, U, V, W, X and Y, are kept one above the other such that bottommost box is numbered as 1, the box above it is numbered as 2 and so on. How many boxes are kept between W and S? Statement I: There is one box between U and T. S is three boxes below T. U is not immediately above S. V is immediately above U. W is two boxes above Y. Statement II: V is the 7 th box. Y is a prime numbered box. X is immediately below Y. There are two boxes between Y and U. There is one box between U and T. W is kept above S.