Tuesday, June 3, 2008

IQ Question

I remember this IQ question that was asked to me many years ago and it suddenly came back to my mind. Try it and see whether you can figure it out:

There is this string of a certain length that takes 60 minutes to burn from one end to the other when in horizontal position. However the rate of burning along the length of the string is not consistent, meaning that if it burned half of its length, it doesn't mean 30 minutes have passed.

So lets say you are given 2 of such strings with same behavior and same length as mentioned above; how do you use them (by burning them of course!) to time 45 minutes?

P/S No...you may not refer to the clock or watch or whatever that can tell you the time!

Recent Related Posts

Widget by Hoctro | Jack Book