Question
Download Solution PDFComprehension
Direction: Study the following information to answer the given questions:
Seven boxes M, N, O, P, Q, R and S are kept one above another to form a stack. The topmost box is numbered as 1, the box below it as 2 and so on till the lowermost box as 7. Box P is three boxes above box O, which is an odd numbered box. Box M is just above box S. Box Q is prime numbered box but not adjacent to box P. Box N is above box R, which is not adjacent to box P.
Which box is the topmost box?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFBoxes: M, N, O, P, Q, R and S.
1) Box P is three boxes above box O, which is an odd numbered box. So, box O can be either box 7 or box 5.
2) Box Q is prime numbered box but not adjacent to box P. So, box Q can be either box 2 in case 1 or box 7 in case 2.
|
Box Number |
Case 1 |
Case 2 |
|
1 |
|
|
|
2 |
Q |
P |
|
3 |
|
|
|
4 |
P |
|
|
5 |
|
O |
|
6 |
|
|
|
7 |
O |
Q |
3) Box M is just above box S.
|
Box Number |
Case 1 |
Case 2 |
|
1 |
|
|
|
2 |
Q |
P |
|
3 |
|
M |
|
4 |
P |
S |
|
5 |
M |
O |
|
6 |
S |
|
|
7 |
O |
Q |
4) Box N is above box R, which is not adjacent to box P. (So, case 1 would be invalid)
|
Box Number |
Boxes |
|
1 |
N |
|
2 |
P |
|
3 |
M |
|
4 |
S |
|
5 |
O |
|
6 |
R |
|
7 |
Q |
Hence, box N is the topmost box.
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