The following Box puzzles are based on the puzzles asked in IBPS RRB PO Prelims held on 9th and 10th September 2017.
Directions (1 – 3): Answer the questions on the basis of the information given below.
8 boxes – A, B, C, D, E, F, G and H are placed one above the another but not necessarily in the same order.
Three boxes are placed between D and B. Two boxes are placed between E and B. Two boxes are placed between A and H. H is placed immediately below B. Two boxes are placed between C and G. Two boxes are placed between A and F.
- How many boxes are placed between D and C?Â
A) Two
B) None
C) Three
D) Five
E) One
View Answer
  Option A
Arrangement:
Three boxes are placed between D and B. Two boxes are placed between E and B. H is placed immediately below B.  4 possibilities:
– Â Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â Â E
– Â Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â Â –
– Â Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â Â –
D Â Â Â Â Â Â Â Â D Â Â Â Â Â Â Â B Â Â Â Â Â Â Â Â B
E Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â H Â Â Â Â Â Â Â Â H
– Â Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â Â –
– Â Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â E Â Â Â Â Â Â Â Â –
B Â Â Â Â Â Â Â Â B Â Â Â Â Â Â Â Â D Â Â Â Â Â Â Â Â D
H Â Â Â Â Â Â Â H
– Â Â Â Â Â Â Â Â Â –
– Â Â Â Â Â Â Â Â Â E
Two boxes are placed between A and H. Â Two boxes are placed between A and F.
– Â Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â Â E
– Â Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â A Â Â Â Â Â Â Â Â A
F Â Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â Â –
D Â Â Â Â Â Â Â Â D Â Â Â Â Â Â Â B Â Â Â Â Â Â Â Â B
E Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â H Â Â Â Â Â Â Â Â H
A Â Â Â Â Â Â Â Â A Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â Â –
– Â Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â E Â Â Â Â Â Â Â Â –
B Â Â Â Â Â Â Â Â B Â Â Â Â Â Â Â Â D Â Â Â Â Â Â Â Â D
H Â Â Â Â Â Â Â H
– Â Â Â Â Â Â Â Â Â –
– Â Â Â Â Â Â Â Â Â E
Only 1st possibility is possible. And now Two boxes are placed between C and G.
So from top to bottom – F > D > E > A > C/G > B > H > C/G
- If C is placed above G, which box is at bottom most position?Â
A) B
B) C
C) H
D) G
E) Cannot be determined
- Which box is placed just above box H?
A) A
B) D
C) G
D) B
E) C
Directions (4 – 6): Answer the questions on the basis of the information given below.
8 boxes – A, B, C, D, E, F, G and H are placed one above the another but not necessarily in the same order.
Two boxes are placed between F and E. F is placed above E. One box is placed between F and G. Three boxes are placed between A and H. A is placed immediately below F. Two boxes are placed between C and H. B is placed somewhere above D.
- How many boxes are placed between F and H?
A) Four
B) None
C) Three
D) Five
E) One
View Answer
  Option A
Arrangement:
Two boxes are placed between F and E. F is placed above E. One box is placed between F and G. A is placed immediately below F.
– Â Â Â Â Â Â Â Â Â Â Â Â Â G
– Â Â Â Â Â Â Â Â Â Â Â Â Â –
F Â Â Â Â Â Â Â Â Â Â Â Â Â F
A Â Â Â Â Â Â Â Â Â Â Â Â Â A
G Â Â Â Â Â Â Â Â Â Â Â Â Â –
E Â Â Â Â Â Â Â Â Â Â Â Â Â E
Three boxes are placed between A and H. Two boxes are placed between C and H. 1st possibility cancels out
. Â Â Â Â Â Â Â Â Â Â Â H Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â H
. Â Â Â Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â G Â Â Â Â Â Â Â G
. Â Â Â Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â Â Â – Â Â Â Â Â Â Â –
F Â Â Â Â Â Â Â Â Â Â F Â Â Â Â Â Â Â Â F Â Â Â Â Â Â Â F
A Â Â Â Â Â Â Â Â Â Â A Â Â Â Â Â Â Â Â A Â Â Â Â Â Â Â A
G Â Â Â Â Â Â Â Â Â Â G Â Â Â Â Â Â Â Â C Â Â Â Â Â Â Â –
E Â Â Â Â Â Â Â Â Â Â E Â Â Â Â Â Â Â Â Â E Â Â Â Â Â Â Â E
– Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â –
H Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â H
1st, 2nd, 4th possibility cancels out.
B is placed somewhere above D.. So from top to bottom – G > B > F > A > C > E > D > H
- Which box is placed at top?
A) B
B) C
C) H
D) G
E) Cannot be determined
- Which box is placed just below box A?
A) E
B) D
C) G
D) B
E) C
Directions (7 – 10): Answer the questions on the basis of the information given below.
8 boxes – A, B, C, D, E, F, G and H are placed one above the another but not necessarily in the same order.
There are four boxes placed between D and G. Two boxes are placed between B and G. Number of boxes between A and G is same as between H and B. A is placed above G. Two boxes are placed between A and H. C is placed just above G. There are at least 2 boxes between E and B.
- Which box is at top most position?
A) C
B) A
C) E
D) H
E) None of theseÂ
View Answer
  Option D
Arrangement:
4 between D and G. and 2 between B and G.C just above G. So 2 possibilities as:
– Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C
D Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â G
– Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â –
B Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â –
– Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B
C Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â –
G Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â D
Now  — Number of boxes between A and G is same as between H and B. A is placed above G. Two boxes are placed between A and H.  Gives
H Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â A
– Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â C
D Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â G
A Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â H
B Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â –
– Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â B
C Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â –
G Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â D
Now: There are at least 2 boxes between E and B.. So 2nd possibility cancels out
From top to bottom – H > W > D > A > B > F > C > G
- How many boxes are between boxes E and A?
A) None
B) Three
C) One
D) Five
E) Four
- Which box is placed just above box B?
A) A
B) C
C) E
D) H
E) D
- How many boxes are below box F?
A) Three
B) Four
C) None
D) Two
E) Six
@shubhra mam tq
tq AZ
thank u mam
thank u so much AC:)
tks
mam 3rd sum(7 to 10) another solution is coming as h>g>c>f>b>a>d>e (bottom to top)whether it is also right ?plz correct me if iam wrong thank you
Two boxes are placed between A and H
But in your arrangement, there are 4 between them
ma’am i hv purchased testzone Speed test bt i couldn’t find RRB PO mains test ?
They will start soon
Meanwhile mail their support team and ask them to provide soon.
support@smartkeeda.com
thank you mam my carelessness
3rd puzulle mst bahut
thankss mam
thankyou team
10-10:)
Thank u
thank you team
10/10 _^_
ty:)
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