Google's Human Resources Department will ask the interviewer some questions during the interview, but some of these questions are simple and confusing (for example, why is the manhole cover round ?) Some are silly. Now let's list the 15 most distinctive questions and share them with you.
1. How many golf balls can a campus bus provide?
Interview position: Product Manager
Note: Google asked this question to test whether the interviewer can find the key points to solve the problem.
The following is a wonderful answer from an interviewer Matt beuchamp:
First, I want to point out that the answer I give is to put a golf course on a static standard campus bus. This campus bus is 8 feet, 6 feet tall and 20 feet long. That is to say, the overall size of the campus bus is 960 cubic feet, a total of 1.6 million square inches. The radius of a standard golf is 0.85 inch, and the size of a golf ball is 2.5 cubic inches. In this way, the computing result is that the campus bus can hold 0.66 million golf balls. However, there are still seats and other objects in the campus bus that will occupy a certain amount of space. In addition, the golf course itself is round, so there will be some gaps between golf balls. In this way, I expected to play 0.5 million golf balls. If we calculate it based on the individual campus buses of celebrities such as President Bush, we will cut the number by half, that is, we can hold 0.25 million golf balls.
2. How much does it cost to clean all windows in Seattle?
Interview position: Product Manager
Answer: This is actually a question of sharp brain turns. The answer is "$10 per window ".
3. In a country, people want to have a son. Every family has children until they have a son. What is the gender/gender ratio of this family?
Interview position: Product Manager
Answer: This is a very controversial question, but the steps for solving the standard answer are as follows:
1. Assume that there are 10 couples in this country, and there are 10 children in total. Five boys and five girls are among the 10 children.
2. Five of them are girls and couples will continue to have children. According to probability theory, there will be 2.5 boys and 2.5 girls. With the original 10 children, there are now 15 children, including 7.5 boys and 7.5 girls.
3. In the next step, 2.5 couples still have no sons and will continue to have children. According to probability theory, 1.25 boys and 1.25 girls will be added. In addition to the original children, there are now 17.5 children, of which 8.75 are boys and 8.75 are girls.
And so on. The ratio of men to women is.
4. How many piano tuner are there in the world?
Interview position: Product Manager
Answer: What are the dominant market parameters. If every piano in the world needs to be called once a week, it takes one hour for each call. A tuner can work eight hours a day and five days a week, then, each Monday, a music tuner can have 40 piano music sets. If there are only 40 piano players in the world, the answer is that there is only one piano player in the world who calls 40.
5. Why is the manhole cover circular?
Interview position: Software Design Engineer
Answer: This is a question that tests the creativity of the interviewer. There is no fixed answer, as long as you can explain this question.
6. How do you design a proper urban evacuation plan for San Francisco?
Interview position: Software Design Engineer
Answer: The purpose of this question is to test how the interviewer handles the difficult problem. It can be converted into: "What is your preparation plan in the face of catastrophic problems ?"
7. How many times does the clock pointer overlap in a day?
Morning:
Afternoon:
8. What are the terminologies of "dead beef "?
Interview position: Software Design Engineer
Answer: There are two types of dead beef explanations: one is the superficial Meaning of "dead ox", and the other is the computer Major that is "interrupted ": the system stops the currently running program and switches to other services, probably because of a high-priority request service, or because of manual interruption. Interruption is a normal phenomenon.
9. What will happen next when a person stops his car in the hotel after losing all his assets?
Interview position: Software Designer
Answer: He was driven out of the parking lot and only allowed to park his car on the road.
10. You want to check whether your friend Bob remembers your phone number, but you cannot directly ask Bob. You can write a question to Eve on the producer, ask Eve to bring the card to Bob, and then ask Bob to write the answer to you on the paper. Q: In addition to writing questions, what else do I need to write in order for Bob to encrypt the answer so that Eve cannot see your phone number, but do you know whether Bob remembers your phone number?
Interview position: Software Design Engineer
Answer: Your goal is to check whether Bob remembers your phone number. Therefore, you only need to write it on the card so that Bob can call you at a fixed time to confirm. The answer is simple? But some people replied: Ask Bob to write the sum of all your phone numbers on the card, and then let Eve bring you to see if the final result is correct.
11. You are now the captain of the pirate ship, and the crew are waiting for you to allocate the gold to snatch. If more than half of the crew members disagree with your allocation plan, you will be killed. Q: How do you get the most gold without being killed?
Answer: at the lowest price, 51% of the crew members agreed.
12. You have 8 balls of the same size, 7 of which have the same weight and the other are heavy. How can I use the balance to retrieve the duplicate ball twice?
Answer: Take out six of the eight balls and put them on both sides of the balance. If the ball is balanced, it indicates that the ball in the comparison is in the remaining two balls. Place the remaining two balls on both sides of the balance to find the heaviest ball. If it is not balanced, the heaviest ball will be in the three balls tilted down. Take two weigh items from the three balls. If the balance is balanced, the remaining one is the heaviest ball. If it is not balanced, the heaviest ball is tilted down.
13. You stood in front of a 100-storey building with two eggs. These two eggs may be solid. Even if they fell down from the roof of the 100-storey building, they would not be broken, or they may be very fragile. They would be broken when they fell down on the 1st floor. Before the two eggs are broken, how can you find the highest floor where the eggs are not broken?
Interview position: Product Manager
Answer: for a 100-storey building, a maximum of 19 experiments can be performed.
First, drop the eggs every 10 floors, from layer 10, layer 20, layer 30 ...... Drop the next egg in sequence. The worst case is that the eggs are broken on the fifth floor. Then, from the first layer to the second layer, the loss occurs at every layer. The worst case is that the first layer is broken. In this way, you can find the highest floor where the eggs are not broken for a maximum of 19 experiments.
14. You want to explain to your 8-year-old nephew what is a database. Please complete it in three sentences?
Interview position: Product Manager
Answer: This question mainly describes how the interviewer expresses complex thinking in simple languages. Our answer is: "A database is a machine that records a lot of information. People use a database to record information and extract it from it as needed.
15. You are reduced to only a coin with a very high thickness (not squashed, but scaled down proportionally), then thrown into an empty glass blater, and the blade starts to rotate in one minute. What do you do?
Interview position: Product Manager
Answer: The question is to test the creative thinking of the interviewer. Correct answer: Switch off the power supply.
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