You can get rope burn from any activity involving the use of rope such as rock climbing roping horses boating or rope climbing.
Can you solve burning rope problem.
If so try this variation.
Once you have taken a crack at solving the riddle you can see the.
Solve these word problems with answers included.
Rope burning logic problem.
We re back with another riddle and this week s is nice and short though figuring out the solution can be a bedeviling pursuit.
Some of you might have heard this problem before.
How can you measure 45 minutes by burning the ropes.
Can you solve the two rope puzzle.
Each rope will take exactly 1 hour to burn.
This burning rope problem is a classic logic puzzle.
Each rope burns in 60 minutes but the ropes do not burn at a constant rate.
You have two ropes and a lighter.
If you light one end of the rope it will take exactly one hour to burn all the way to the other end.
This is the only equipment you can use.
You have two ropes.
A logic brain teaser.
Each takes exactly 60 minutes to burn.
Treating a bad rope burn requires attentive care in order to prevent infection and pain and to ensure healing comes quickly 1.
First rope second 30 mins second rope 15 mins 45 mins.
So the total time can be calculated like below.
Since a single rope burns in 30 60 2 minutes when burned by two flames we deduce a single rope will burn in 20 60 3 minutes with three flames.
They are made of different material so even though they take the same amount of time to burn they burn at separate rates.
Rope 2 would also burn to a point where only 30 mins are left for it to burn completely.
By the time rope one burns it will be 30 mins.
Posted by jason kottke nov 22 2006.
But it doesn t have to burn at a uniform rate.
We can measure 30 minutes by burning one rope at both ends so we can solve this if we can measure 20 minutes on the other rope.
At this point burn the rope 2 at the remaining end and it will burn off completely in 15 mins.
You have two ropes coated in an oil to help them burn.
The burning rope problem.
You have two ropes coated in an oil to help them burn.