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sweet
May 1st, 2003, 05:50 AM
ok here's for the real real smart one..

The objective: To measure 45 minutes of time.
What you got: 2 sticks of different material and different sizes which individually take one hour to burn completely & rate of burning of 2 is same(and of course you have some means to burn them...)

now please don't be too smart to think about a timer..coz u got none.

cheers!

mbamal
May 1st, 2003, 09:03 AM
let us assume that we have rope1 and rope2

burn both ends of rope1 and only one end of rope2. When rope one burns completely then we know half hour is over...now burn the other end of rope2 which has 30 minutes left..when that rope2 burns completely then we know its 45 minutes.

mbamal
May 1st, 2003, 09:05 AM
sorry i mentioned ropes instead of sticks....actually i did this puzzle in high school with ropes...so i still had ropes in my mind..

akdalal
May 1st, 2003, 12:36 PM
Great Mandeep, keep it up.

What say Soma?

mbamal
May 1st, 2003, 08:17 PM
thank u anand....for the encouragement

shekhar_nehra
May 2nd, 2003, 12:28 AM
Mandeep Bhai ,
Ek dum sahi jawab.
I had also done ropes wala version earlier.