Seven boxes, B, D, E, P, S, T and W, are kept one over the other but not necessarily in the same order. Only four boxes are kept between E and W. Only D is kept above E. Only two boxes are kept between P and T. S is kept immediately above B. T is not kept immediately above S. Which box is kept fourth from the top?
S
Number the stack from the top as position 1 (top) down to position 7 (bottom).
Only D is kept above E, so D is at position 1 (top) and E is at position 2.
Only four boxes are kept between E and W; with E at position 2, W is at position 2 + 4 + 1 = 7 (bottom).
The remaining positions 3, 4, 5 and 6 are for B, P, S and T. Only two boxes are kept between P and T, which fits positions 3 and 6.
S is kept immediately above B, so S and B occupy the adjacent positions 4 and 5, giving S at 4 and B at 5.
T is not kept immediately above S; if T were at position 3 it would be just above S at 4, so T must be at position 6 and P at position 3.
The final order from top is D, E, P, S, B, T, W. The box fourth from the top is S.
Hence, the box kept fourth from the top is S.
Similar Questions
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 A and E. Only C is kept above A. Only two boxes are kept between G and F. B is kept immediately above D. F is not kept immediately above B.
How many boxes are kept below B?
Important Questions from Box Puzzle
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?
- 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 ?
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?
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?
Which box is the first from the left?
A. Red
B. White
C. Blue
D. Green
