Can You Solve These Challenging Microsoft Interview Riddles?

[bhaichara]

Site for Microsoft Interview Questions

http://www.emicrosoftinterview.com -Guide for Microsoft Interview Questions

 

[michealsmith]

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

 

[arivero]

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.

45 min ... burn

Spoiler

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