Verify mobile number to view the solution
Solutions
1) Two boxes are kept above box U.
(In Case 2, one of the stacks above U is empty)

2) Two boxes are kept between box U and box P and there is no empty stack between them.
3) No box is kept between box P and box T which is not kept at an even numbered stack.

4) Two boxes are kept between box T and box R which is not kept at an even numbered stack.
Case 2a will be ruled out.
5) One box is kept between box R and box Q.

6) Box S is kept above box P.
7) Box V is not kept at an even numbered stack.
Case 1 will be ruled out:

Clearly, ‘R, T’ doesn’t belong to that group because all the other pair are kept adjacent to each other.