Seven boxes- B1, B2, B3, B4, B5, B6 and B7 are kept one above the other but not necessarily in the same order. The bottommost position is numbered as 1, above that 2 and so on.
Four boxes are kept between box B2 and box B6.
Box B2 is kept above box B6.
| | Case 1 | Case 2 |
| Position | Box | Box |
| 7 | B2 | |
| 6 | | B2 |
| 5 | | |
| 4 | | |
| 3 | | |
| 2 | B6 | |
| 1 | | B6 |
The number of boxes kept above box B2 is same as the number of boxes kept below box B4.
Box B4 is not kept at the bottommost position.
Thus, Case 1 gets cancelled.
| | Case 2 |
| Position | Box |
| 7 | |
| 6 | B2 |
| 5 | |
| 4 | |
| 3 | |
| 2 | B4 |
| 1 | B6 |
Two boxes are kept between box B1 and box B5.
Box B7 is kept immediately below box B1.
| Position | Box |
| 7 | B5 |
| 6 | B2 |
| 5 | |
| 4 | B1 |
| 3 | B7 |
| 2 | B4 |
| 1 | B6 |
Now, box B3 is remaining.
| Position | Box |
| 7 | B5 |
| 6 | B2 |
| 5 | B3 |
| 4 | B1 |
| 3 | B7 |
| 2 | B4 |
| 1 | B6 |
This is the final arrangement.
I. Three boxes are kept between box B3 and box B6.
II. Box B5 is kept at the topmost position.
III. Box B1 is kept at the even number position.
These statements are TRUE.
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