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There are 100 doors all are closed. The below action is
taken
1) all are opened
2)all multiple of 2's are togelled ie if
open close or viceversa
.....100 times.
What is the status of the door after 100th.
- 7 Answers
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Answer / akash srivastava
the series 1,4,9,16,25,36,49,64,81,100 doors will be open
rest of all will be close.....bcOZ:this is a series of
progressive odds difference i.e. 4-1 = 3, 9-4 = 5, 16-9 = 7
and sO on....hence they must have odds number of multiples
which them odd times toggle sOo open...!!! rest of ol
numbers hv even multiples so close...!!!
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / thirumal rao
either closed are opened depending on first multiple of 2's door
| Is This Answer Correct ? | 0 Yes | 0 No |
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