You can solve the egg boil problem that only smart people can solve

This egg-boiling puzzle is quite 'tricky', only 20% of smart people solve it. What about you, try this puzzle to check your logical thinking level.

1. 6 puzzles that make you "brainstormed" and not sure which one to answer
2. If you solve this puzzle, you're better than Japanese physics professor!
3. Can you solve the puzzle that all astronauts must pass before entering this universe?

Question:

Breakfast of a scientist has an egg and he wants to boil an egg for exactly 15 minutes.

But, he only has 2 hourglass: 1 7 minute, 1 11 minute unit.

Ask the scientist how to calculate exactly 15 to boil eggs?

Try thinking and see how long you can come up with the answer. If you can find it, see the answer below.

Answer:

First, let both hourglass flow at the same time!

When the clock is 7 minutes out, start boiling the eggs.

At that time, the hourglass 11 minutes will be 11 - 7 = 4 minutes. When it runs out of sand, turn it around. At the time of the hourglass 11 minutes of running out, we boiled eggs exactly 15 minutes: 11 + 4 = 15. Turn off the stove, remove the eggs and enjoy breakfast.

This poached egg puzzle has many different solutions and the above answer is just one of them. How is your answer? Do you match this answer, please leave a comment to share with everyone else.