Can You Solve These Challenging Microsoft Interview Riddles?

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In summary, the conversation discusses three challenging riddles that were part of a Microsoft job interview. The interviewer was interested in seeing how the interviewee approached and explained their thought process, even if they did not get the answer. The first riddle involved finding a pattern in a numerical sequence, while the second one required strategizing how to get four people across a bridge in the shortest amount of time. The third riddle involved using two fuses of different burning rates to time 45 minutes exactly. The conversation also includes different solutions and interpretations of the riddles.
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Site for Microsoft Interview Questions

http://www.emicrosoftinterview.com -Guide for Microsoft Interview Questions
 
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  • #37
45 min ... burn both ropes at same time ..rope 1 from both ends and rope 2 from 1 end
wen rope 1 is burnout 30 min has gone ...and so out rope 2 which has 30 min left and then burn that from both ends instantaneouly affter rope 1 is ouit...even if its not instantaneous you would measure approxmatley 45 min plus 5 seconds or so
 
  • #38
I am resusciting this problem in a new thread, https://www.physicsforums.com/forumdisplay.php?f=33 because it deserves more discussion. To begin, that the question with 45 mins needs two strings but the same question for 15 minutes needs only one string.


michealsmith said:
45 min ... burn
both ropes at same time ..rope 1 from both ends and rope 2 from 1 end
wen rope 1 is burnout 30 min has gone ...and so out rope 2 which has 30 min left and then burn that from both ends instantaneouly affter rope 1 is ouit...even if its not instantaneous you would measure approxmatley 45 min plus 5 seconds or so
 
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