Seven boxes J, K, L, M, N, O and P are kept one over the other but not necessarily in the same order. Only five boxes are kept between K and J. L is kept immediately above P. M is kept immediately below N. O is kept at one of the positions above J. N is kept immediately below K. How many boxes are kept between N and J ?

.Five boxes are kept between K and J: This means there are 5 boxes between K and J, so their positions are fixed relative to each other.

L is kept immediately above P: L is directly above P in the stack.

M is kept immediately below N: M is directly below N in the stack.

O is kept at one of the positions above J: O is above J.

N is kept immediately below K: N is directly below K.

The total number of boxes between N and J is 4.

Thus, correct option is (d).

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