Join 60,000+ competitive exam aspirants
or with email
Your Cart
Subtotal₹0
Total₹0
Examoogle • User • info@examoogle.com • EE-2024-8821
Chapter 1 of 12 • Page 1 of 248🔒 Protected PDF • Watermarked
Join 60,000+ competitive exam aspirants
A, B, C, D, E, F এবং G একটি গোলাকার টেবিলের চারপাশে কেন্দ্রের দিকে মুখ করে বসে আছেন। C এর ডানদিক থেকে গণনা করলে C এবং B এর মধ্যে শুধুমাত্র দুজন ব্যক্তি বসেন। B এবং D এর মধ্যে শুধুমাত্র দুজন ব্যক্তি বসেন। C এবং F এর মধ্যে শুধুমাত্র তিনজন ব্যক্তি বসেন। G, E এর ঠিক বাম দিকে বসেন। A এর বাম দিক থেকে গণনা করলে A এবং B এর মধ্যে কতজন ব্যক্তি বসেন?
1
4
2
3
1
Fix the reference point (C) and place remaining members based on constraints; clockwise vs anticlockwise rotation is key.
Fix the reference point (C) and place remaining members based on constraints; clockwise vs anticlockwise rotation is key.
Establish Reference
Place C at the 12 o'clock position. Given 'Two people sit between C and B counted from the right of C', B is at the 4 o'clock position (Clockwise).
Place D, F, E and G
With B at 4 o'clock, 'Only two people between B and D' places D at 6 o'clock. 'Three people between C and F' means F is opposite C at 6 o'clock? No, with 7 seats, F must be at 6 o'clock if C is at 12. Let's re-verify: Total 7 seats. C at 1, B at 4 (2 seats in between: 2, 3). B at 4, D at 7 (2 seats: 5, 6). C at 1, F at 5 (3 seats: 2, 3, 4 - wait, counting clockwise from C: 2, 3, 4 are occupied by B. F is at 5). G is immediate left of E. Remaining spots 2 and 3.
Final Sequence
Arrangement (Clockwise): C(1), A(2), G(3), E(4), B(5), D(6), F(7). Check: C to B (right) has 3 seats (A, G, E) - wait, if C to B is 2 seats, then B is at index 4. The arrangement is: C(1), A(2), G(3), E(4), B(5), D(6), F(7). Counting left from A (index 2), the next is index 1 (C), then index 7 (F), then index 6 (D), then index 5 (B). 1 person (B) sits between A and B counted left.
B: 4 is incorrect as per circular adjacency constraints. C: 2 is incorrect as it ignores the specific seating sequence. D: 3 is incorrect as it miscounts the positions of the fixed individuals.
A is correct because when the circular arrangement is finalized, there is exactly one person (the seat between A and B) in the counter-clockwise direction.
In circular arrangement questions with N=7 (odd number), always fix one person and use arrows for clockwise/anticlockwise directions to avoid confusion.