Calibrate both the ropes and burn 1 rope from both ends. It will take half an hour. Then note down the point where the rope fully burns out. Cut the second rope at this point and fire both ends of any one of the pieces. This will take 15 mins.
On Thu, Aug 4, 2011 at 4:54 PM, anubhav gupta <[email protected]>wrote: > both ropes have to burn in one hour.. so if burn first rope at both ends it > wil definitely take 30 mins to burn completely no matter how non uniform > burning is.. when first rope burn out completly(after 30 mins) second rope > still have 30 mins left for complete burning so if it is burn at both ends > it wil take half the time left i.e 15 mins .. so in total we get 45 mins > > > On Thu, Aug 4, 2011 at 4:32 PM, Nikhil Gupta <[email protected]>wrote: > >> @priyanka, the ropes have a non uniform rate of burning. Means at some >> duration they will be burning faster, and slower at some. So you cannot say >> that first rope will take 30mins to burn completely, and by that time >> second rope is half burnt. >> >>> >>>> >>>> Nikhil Gupta >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- Regards, Shachindra A C -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
