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Question

The last room that is closed is room number?
  1. 1936
  2. 2000
  3. None of these
  4. 1922

A
1936
B
2000
C
1922
D
None of these
Solution
Verified by Toppr

According to the question ,if a room has odd number of visitors it will be closed.
Any room which is twice a perfect square will have an odd number of visitors.The room with twice a perfect square will be last room to have an odd number of visitors.
Hence the last number is 2×961=1922

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