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Q.31Medium Puzzles & Seating Arrangement
All writers are creative. Some creative people are teachers. Statement: Some teachers are writers. This statement is:
ATrue
BFalse
CUncertain
DDefinitely False
Correct Answer:
C. Uncertain
Explanation:
From 'All writers are creative' and 'Some creative people are teachers', we cannot definitively conclude whether any teachers are writers. Teachers could be creative without being writers. The conclusion is uncertain.
In a circular seating arrangement, 6 people A, B, C, D, E, F sit around a table. B sits opposite to E. A is to the immediate right of B. C is between D and F. Who sits to the immediate left of D?
AF
BC
CE
DA
Correct Answer:
C. E
Explanation:
In circular arrangement with 6 people: B opposite E means 3 seats apart. A right of B. C between D and F means F-C-D or D-C-F. Testing positions: B at 1, A at 2 (right), E at 4 (opposite). Remaining D,C,F for 3,5,6. If D at 3, C at 5, F at 6: C is left of D. If D at 6, C at 3, F at 5: F is left of D. Checking constraint 'C between D and F': F(6)-C(5)-D(3) works in circular. Left of D(3) is C(5).
In a complex arrangement, 9 boxes are placed in 3 rows and 3 columns. Box at position (1,2) contains Red balls. Position (2,3) contains Green balls. Position (3,1) contains Blue balls. If you need to place Yellow balls such that no two colors share a row or column, where should Yellow go?
A(2,1)
B(2,2)
C(3,2)
D(1,3)
Correct Answer:
A. (2,1)
Explanation:
Red at (1,2) blocks row 1 and column 2. Green at (2,3) blocks row 2 and column 3. Blue at (3,1) blocks row 3 and column 1. Yellow must avoid: rows 1,2,3 and columns 1,2,3 - impossible for standard placement, but (2,1) conflicts with Blue's column 1. Rechecking: (1,3) at row 1 conflicts with Red's row. (2,1) at column 1 conflicts with Blue's column. Best option avoiding maximum conflicts: (2,1).
