Billiard balls
This question is most often asked to IT professionals to test the ability to think logically.
Question: There are 8 billiard balls. One of them is a little heavier than the others. For what minimum number of weighings on a lever scale without weights can this ball be found?
Answer: 2 weighings. It is necessary to divide all the balls into three parts: 3 balls in two parts, and 2 balls in the third part. First, weigh the first two parts of 3 balls. If one of the parts turned out to be heavier, then we weigh among themselves any 2 balls from it. Either one of them will be the desired ball, or not weighted if they are equal. In case of equal weight of the parts during the first weighing, the heavier ball will be in the third part of the two balls.
House
Question: Draw a house.
Answer: It would seem that it could be easier. Draw a square, a couple of rectangles and a triangle at the top. But no. This test is designed for positions that require non-standard solutions from the employee and an individual approach to each task (designers, advertising managers). First, you need to be creative, not draw a template house. Secondly, you must first clarify for whom this house: who will live in it, and how many of these residents will be. Do not get to work without knowing all the nuances.
You may be asked to draw not only a house, but anything. But you always need to find out all the details so that the final result is correct. And the process itself will mean much more than this final result.
Elephant
Question: How to find out the weight of an elephant without weights?
Answer: There can be many options; you are limited only by your resourcefulness and imagination. For example, an elephant can be put on a barge and note its draft. Then remove the elephant and put on the barge objects whose weight you know - five-liter water bottles, for example. And when the draft of the barge will be the same level as with the elephant, we multiply the number of objects by their weight. The main thing here is your ingenuity.
Dragee M & M’s
Question: Why is the glaze on the famous M & M’s dragees perfectly smooth? How do they make them fly in the air?
Answer: Another question, the correct answer to which is not so important as the options proposed by the candidate. How would you solve this problem if you suddenly got into production? Would you keep the pills in the air stream? Would you stick it on the thread where the logo is located? In fact, they are sprayed with icing in a rotating drum. Thus, their surface remains smooth, and the glaze is applied evenly. But your individual approach to solving this problem will mean much more.
Russian roulette
The solution to this problem depends on the specifics of your profession. The answer can be found using accurate calculations, or simply using logic.
Question: There is a six-shot revolver. It has 2 bullets, both located next to each other. Your opponent spins the drum, puts the barrel in the temple and pulls the trigger. The shot did not happen. What will you do: immediately pull the trigger or first spin the drum again?
Answer: There is only one correct answer - immediately pull the trigger. If you make accurate calculations, then the probability of surviving in this case is 75%, and if you spin the drum first, it decreases to 66.7%. Since the bullets are located next to each other, it can be logically determined that it is better to pull the trigger immediately.
This question is most often asked to IT professionals to test the ability to think logically.
Question: There are 8 billiard balls. One of them is a little heavier than the others. For what minimum number of weighings on a lever scale without weights can this ball be found?
Answer: 2 weighings. It is necessary to divide all the balls into three parts: 3 balls in two parts, and 2 balls in the third part. First, weigh the first two parts of 3 balls. If one of the parts turned out to be heavier, then we weigh among themselves any 2 balls from it. Either one of them will be the desired ball, or not weighted if they are equal. In case of equal weight of the parts during the first weighing, the heavier ball will be in the third part of the two balls.
House
Question: Draw a house.
Answer: It would seem that it could be easier. Draw a square, a couple of rectangles and a triangle at the top. But no. This test is designed for positions that require non-standard solutions from the employee and an individual approach to each task (designers, advertising managers). First, you need to be creative, not draw a template house. Secondly, you must first clarify for whom this house: who will live in it, and how many of these residents will be. Do not get to work without knowing all the nuances.
You may be asked to draw not only a house, but anything. But you always need to find out all the details so that the final result is correct. And the process itself will mean much more than this final result.
Elephant
Question: How to find out the weight of an elephant without weights?
Answer: There can be many options; you are limited only by your resourcefulness and imagination. For example, an elephant can be put on a barge and note its draft. Then remove the elephant and put on the barge objects whose weight you know - five-liter water bottles, for example. And when the draft of the barge will be the same level as with the elephant, we multiply the number of objects by their weight. The main thing here is your ingenuity.
Dragee M & M’s
Question: Why is the glaze on the famous M & M’s dragees perfectly smooth? How do they make them fly in the air?
Answer: Another question, the correct answer to which is not so important as the options proposed by the candidate. How would you solve this problem if you suddenly got into production? Would you keep the pills in the air stream? Would you stick it on the thread where the logo is located? In fact, they are sprayed with icing in a rotating drum. Thus, their surface remains smooth, and the glaze is applied evenly. But your individual approach to solving this problem will mean much more.
Russian roulette
The solution to this problem depends on the specifics of your profession. The answer can be found using accurate calculations, or simply using logic.
Question: There is a six-shot revolver. It has 2 bullets, both located next to each other. Your opponent spins the drum, puts the barrel in the temple and pulls the trigger. The shot did not happen. What will you do: immediately pull the trigger or first spin the drum again?
Answer: There is only one correct answer - immediately pull the trigger. If you make accurate calculations, then the probability of surviving in this case is 75%, and if you spin the drum first, it decreases to 66.7%. Since the bullets are located next to each other, it can be logically determined that it is better to pull the trigger immediately.
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