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Question

Seven boxes, A, B, C, D, K, L and O, are kept one over the other, but not necessarily in the same order. Only two boxes are kept below O. Only one box is kept above L. Only one box is kept between L and D. C is kept immediately above K. A is kept at some place below B. How many boxes are kept between B and C?

This question was previously asked in
RRB NTPC 2024 CBT 1 Question Paper (28-Aug-2025) (Shift 3)
The correct answer is
Four

Determining Box Arrangement

We need to determine the exact order of the seven boxes based on the given clues.

  • There are 7 positions, let's number them 1 (bottom) to 7 (top).
  • Clue 1: "Only two boxes are kept below O." This places O at position 3.

    Arrangement: $_ _ O _ _ _ _$

  • Clue 2: "Only one box is kept above L." This places L at position 6.

    Arrangement: $_ _ O _ _ L _$

  • Clue 3: "Only one box is kept between L and D." With L at 6, D must be at position 4.

    Arrangement: $_ _ O D _ L _$

  • Clue 4: "C is kept immediately above K." This pair (CK) must fit into the remaining slots (1, 2, 5, 7). The only consecutive slots available are 1 and 2. So, K is at 1 and C is at 2.

    Arrangement: $K C O D _ L _$

  • Clue 5: "A is kept at some place below B." The remaining slots are 5 and 7. B must be above A. So, B is at position 7 and A is at position 5.

    Final Arrangement (Bottom to Top): $K, C, O, D, A, L, B$

Calculating Boxes Between B and C

Now we find the number of boxes between B and C using the final arrangement:

  • Position of B: 7
  • Position of C: 2
  • The boxes situated between positions 2 and 7 are O, D, A, and L.
  • The count of boxes between B and C is 4.
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Similar Questions

  1. Seven boxes V, W, X, Y, Z, Q and R are kept one over the other but not necessarily in the same order. Y is kept immediately above Q. W is kept immediately above Z. Only X is kept above V. Only two boxes are kept above Y. W is not kept at third position from the bottom. How many boxes are kept between R and X?
  2. Seven boxes A, B, C, D, E, F, and G are kept one over the other but not necessarily in the same order.
    F is kept immediately above G. A is kept immediately above C. Only E is kept above B. Only two boxes are kept above F. A is not kept at third position from the bottom.
    How many boxes are kept above C?
  3. Seven boxes A, B, C, D, E, F and G are kept one over the other but not necessarily in the same order. Only A is kept above F. Only C is kept between F and D. Only B is kept below E. How many boxes are kept between E and F?
  4. Seven boxes A, B, C, D, E, F and G are kept one over the other but not necessarily in the same order. Only four boxes are kept between F and A. Only B is kept above F. Only two boxes are kept between G and E. D is kept immediately above C. E is not kept immediately above D. How many boxes are kept between E and F?
  5. Seven boxes D, E, F, G, H, I and X are kept one over the other but not necessarily in the same order. Only F is kept above I. Only X is kept between I and E. Only H is kept below G. How many boxes are kept between D and F?
  6. Seven boxes S, P, L, Q, R, M and N are placed one above the other (not necessarily in the same order). Only three boxes are placed between M and L. M and L are placed neither at the bottom nor at the top. Only two boxes are placed between L and N. S is immediately below R. There is only one box between S and Q. M is placed above L.
    How many boxes are placed between P and N?
  7. Eight boxes A, B, C, D, E, F, G and H are placed one above another (not necessarily in the same order). Only two boxes are placed between B and E. H is placed immediately below E. Only one box is placed between G and C. Only one box is placed between G and A. B is placed above D and H. More than one box are placed between C and F.
    How many boxes are placed between F and C?
  8. Seven boxes, A, B, C, D, M, N and O, are kept one over the other but not necessarily in the same order.
    Only three boxes are kept above C. Only one box is kept between O and C. Only three boxes are kept between O and N. N is kept at some place above C. A is kept immediately below N. B is kept at one of the places above D. M is not kept immediately above or below O.
    Which box is kept at the lowermost position?
  9. Seven boxes A, B, C, D, E, F and G are kept one over the other but not necessarily in the same order. A is kept second from the bottom. Only three boxes are kept between A and G. E is kept at one of the positions below A. Only D is kept between G and F. C is kept at one of the positions above G. How many boxes are kept between B and E?

  10. Seven boxes, M, N, O, P, Q, R and S, are kept one over the other, but not necessarily in the same order.

     No box is kept above O. Only three boxes are kept between O and S. Only one box is kept between Q and M. M is kept immediately above S. Only four boxes are kept between Q and P. R is kept at some place above N. 

    Which box is kept second below R?


Important Questions from Box Puzzle

  1. J, K L, M, N and O are six teachers. Each one teaches a different subject out of Hindi, English, Math, Science, Social Science and Arts, NOT necessarily in the same order. Each of them teaches on only one day, from Monday to Saturday, NOT necessarily in the same order. J teaches Arts on Saturday. L teaches neither English nor Social Science, but he teaches on Thursday. Wednesday is reserved for Maths taught by K. O teaches Science a day before N. Social Science is taught a day before Arts.

    Which subject is taught on the day between Thursday and Saturday?

  2. Five chairs C1, C2, C3, C4 and C5 are placed one above the other. If C1 is above C2, C3 is above C4 but below C5 and C4 is above C1, which chair is in the middle ?
  3. J, K, L, M, N and O are six teachers. Each one teaches a different subject out of Hindi, English, Math, Science, Social Science and Arts, not necessarily in the same order. Each of them teaches on only one day, from Monday to Saturday, not necessarily in the same order. J teaches Arts on Saturday. L teaches neither English nor Social Science, but he teaches on Thursday. Wednesday is reserved for Maths taught by K. O teaches Science a day before N. Social Science is taught a day before Arts. Which subject is taught by L?

  4. J, K L, M, N and are six teachers. Each one teaches a different subject out of Hindi, English, Math, Science, Social Science and Arts, not necessarily in the same order. Each of them teaches on only one day, from Monday to Saturday not necessarily in the same order. J teaches Science on Wednesday. O teaches Math second after J. K teaches on the first day of the week, but teaches neither Hindi nor English. M teaches English before N and L teaches Arts before J. Which subject is taught on Saturday?

  5. Which box is the first from the left?

    A. Red

    B. White

    C. Blue

    D. Green
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