Can you solve the classic puzzle: Burning time-consuming rope?

Let's enjoy the new day with a puzzle that is both difficult and easy: burn this timeline!

This puzzle is simple, just pure logic without the need for complicated mathematical formulas.

Question: You have 2 wires and a lighter. If you burn one end, the string will burn out within 1 hour. So how to burn both fibers in exactly 45 minutes?

The content of the puzzle.

This is a relatively classic puzzle, once a time to make storms on newspapers and foreign social networks. If the prize proves your ability to think is quite "quality" , because more than half of the people are asked or cannot answer, or have to think hard to do it.

What? Can you answer If you can't do it, scroll down to see the answer.

The answer

First, just call 2 wires A and B for easy. To solve this puzzle, you must rely on the only facts provided: A and B burn out within an hour of burning one end.

This means that if two ends are burned, the cord will burn for exactly 30 minutes. And after half burning, you burn the remaining tip, the time for the rest of the string to burn will be exactly 15 minutes.

So the problem now is just how to measure exactly when the burning string is half full.

That's easy, isn't it: With wire A, burn two heads, and burn one end of wire B.

Answer of the above classic puzzle.

When wire A burns out, wire B will have 30 minutes to burn. Now light the fire on the other end of wire B, and when B burns out, exactly 45 minutes have passed.