Answer some basic ideas and methods of Intelligence Testing

Although "stupid bird first fly" has become a famous saying, but well-known foreign companies in the interview still pay attention to the intellectual components, sometimes even put the intelligence test in the most important position, and the test method is strange.

It is generally believed that intelligence is composed of basic factors such as observation, memory, thinking, and imagination. Therefore, the Intelligence Testing of foreign companies also focuses on these aspects, and sometimes focuses on one of them, sometimes we conduct a comprehensive investigation on several aspects.

Some basic methods to answer the question are as follows.

(1) Reverse Lookup

Start from the final result of the question and push forward step by step until you can find the answer to the question. Some problems are easily solved using this method, but it is difficult to use other methods.

(2) hypothesis

First, make one or more assumptions about the given problem, and then analyze it based on the given conditions. If there is a conflict with the conditions given by the question, it indicates that the hypothesis is incorrect, let's make another or another assumption. If there are only two possible results, the problem has been solved. In the history of science, "assumptions" have played a significant role.

(3) Exclusion

Eliminate irrelevant problems first, and determine problems first, so as to narrow down the scope of the unknown as much as possible, so as to facilitate the analysis and solution of the problem. This way of thinking is very useful in our work and life.

(4) Progressive Method

By analyzing the known conditions, make sure that each step is accurate. There may be several branches. We should first start with a simple branch based on the principle of first being easy, then difficult.

(5) Calculation Method

Some problems can be solved only after calculation. It should be noted that the questions in the quiz often contain implicit conditions, and sometimes the number given is useless.

(6) Analytical Method

This is the most basic method. Analysis is often used for various methods. It can be said that the level of analytical ability is a manifestation of a person's level of intelligence. The analytical ability is not only innate. To a large extent, it depends on the training of the day after tomorrow. It is necessary to develop a good habit of Analyzing Objective things.

(7) Graph Method

Based on the known conditions in the problem, use appropriate methods to draw a picture to help solve the problem. There are some problems. Before drawing a picture, you may feel that you have nowhere to start. After drawing the picture, you can see it clearly.

(8) Comprehensive Method

In fact, many problems can be solved through several different methods. The so-called comprehensive method is to combine various methods (including methods other than the aforementioned methods) to solve some problems.

 

For example

　　Interview example1: click the mouse to start now! Contestants include Ralf, Willey, and Paul.

Ralf was able to give 10 clicks in 10 seconds, Mike was able to give 20 clicks in 20 seconds, and Paul was able to give 5 clicks in 5 seconds. The time used by the above members is calculated as follows: from the first blow to the end of the last blow.

Are they flat? If not, who first clicks 40 mouse clicks?

Resolution: It takes n seconds to start timing when you press the first mouse for n seconds. In fact, it takes n seconds to press n-1. If you press 40, ralf needs (40-1)/(9/10) = 39/0. 9 seconds, Wylie needs (40-1)/(19/20) = 39/0. 95 seconds, Paul needs (40-1)/(4/5) = 39/0. 8 seconds, so we hit it first.

Answer: Willey finishes the attack first.

 

Where can I go for an interview example at USD?

Three friends stayed in a hotel. At checkout, the total bill is USD. Each of the three friends shared $ and handed over the $ million.ServiceDelegate to the ledger. However, at the time of settlement, the hotel offered a preferential price. The total station refunded $500 to the waiter and paid $500. The waiter deducted $500 from the refund of $200 and only refunded $300 to three guests. The three guests shared the USD 300 and each person retrieved the USD 100. In this way, each of the three guests actually pays 900 US dollars, a total of 700 US dollars, plus 200 US Dollars deducted by the waiter, a total of 900 US dollars, then where is the difference between the 100 US dollars?

Answer: This question is purely a text game, but if your mind is not clear enough, you may be confused. The actual payment of $700 is equivalent to the actual settlement of $500 on the Total Station plus the deduction of $200 from the waiter. Adding $700 to the $200 is unreasonable, and adding the $700 to the $300 is justified, this is equivalent to the $ that the customer previously handed over to the waiter.

 

Example 3: There is a worm that splits every two seconds. After the split, two new bugs will be split after two seconds. If there is only one worm in a bottle at first, change it to 2 in 2 seconds, and then change it to 4 in 2 seconds ...... Two minutes later, a bottle of worms was full. Assume that two of these worms are placed in the bottle.

Q: How long has it taken to become a full bottle?

Answer: after 1 minute 58 seconds, it happens that a bottle is full. Because it takes only 2 seconds to change from a worm to two worms. When there is only one bug in the bottle, it will become 2 after 2 seconds. At this time, the situation is the same as that of the first two bugs in the bottle. The time difference between the two cases is 2 seconds. So, after 1 minute 58 seconds, it was just a full bottle.

 

Interview Example 4: stylenx is a lion and female with wings in ancient Greek mythology. It is said that she was waiting for someone to guess the riddle near theobis. Once, she asked Prince thebs to guess: "There is an animal, four legs in the morning, two legs at noon, three legs at night. What is the animal ?" The wise prince said, "It's a person ." He guessed it.

What kind of questions will you ask if you are a modern stylenx? For example, what symbols can be added between 1 and 0 to make the number larger than 0 and smaller than 1? Do you know?

Answer: 0.1

 

Example 5: My father called her daughter and asked her to buy some daily necessities for herself. She also told her that the money was put in an envelope on her desk. The daughter found the envelope and saw 98 on it. She thought there was 98 yuan in the envelope, so she took out the money and put the money into her schoolbag. In the store, she bought 90 yuan of things, and only found that she had not left 8 yuan, but 4 yuan. Back home, she told her father about it and suspected her father had made a mistake in money. His father said with a smile that he did not know what was wrong and was wrong with his daughter.

Q: Where is my daughter wrong?

Answer: Take it down. 86 is regarded as 98.

 

Interview example: at, the three children turned their pockets and took out all their money to see how much they had. The result is 320 yen in total. Two coins are 100 yen, two are 50 yen, and two are 10 yen. Each child does not carry the same coin. In addition, children without 100 yen coins did not bring 10 yen coins, and children without 50 yen coins did not bring 100 yen coins. Can you figure out what coins the three Japanese children used to carry?

Answer: first child:, 50, 10; Second Child:, 50; Third Child: 10.