Question

Seven boxes J, K, L, M, N, O, and P are kept in a stack from top to bottom but not necessarily in the same order. Box P is kept the fourth position from the top. There are only 2 boxes above box J. There are three boxes between box O and box L which is kept at the second position from the bottom. Box M is neither adjacent to box P nor is kept at the top position. There are minimum two boxes between box O and box K. How many boxes are kept between box N and box K?

• A. Two
• B. Three
• C. Four
• D. One

Answer 1

Answer:

B. Three

Solution:

Given :

• Seven boxes - J, K, L, M, N, O, and P

• They are kept in a stack from top to bottom.

​Explanation :

1) Box P is kept the fourth position from the top. There are only 2 boxes above box J. 

Box

J

P

2) There are three boxes between box O and box L which is kept at the second position from the bottom.

Box

O

J

P

L

3) Box M is neither adjacent to box P nor is kept at the top position.

Box

O

J

P

L

M

4) There are minimum two boxes between box O and box K.

After positioning box K only one position is left which will be occupied by the only box left i.e box N.

Box

N

O

J

P

K

L

M

Thus, according to final arrangement there are two boxes kept between box N and box K.

Hence, "Three" is the correct answer.