Three people, one person only pays 90 small two, earns 20, and asks what about 10 yuan?

At the boss's place, because the boss only refunded them 50, not 60

I've seen a lot of similar questions.

Don't be fooled by Xiao Er's 20 pieces.

270 yuan for the guest - 20 yuan for the second child = 250 yuan for the boss.

10 yuan is in the man's hand, and the man has been paying 90

Q: What about 10 more? is wrong.

The three of them paid a total of 300 yuan, returned 30 yuan, paid 270 yuan, the boss paid 250 yuan, and the second child earned 20 yuan.

300-30) = 250 + 20 just no more, no less.

The addition should be 10 per person

You didn't make the topic clear. Does the boss say that 50 will be refunded to each person, or will the total number of three people be refunded 50

You can't use 3*90, the 250 can't be divided, it's the boss's, and 3 people buy 10 yuan, and the 10 fast doesn't exist

There are 3 people to stay, 30 yuan a night. The three of them each paid 10 yuan, and 30 yuan was handed over to the boss.

Later, the boss said that today's discount was only 25 yuan enough, and took out 5 yuan and ordered the waiter to return it to them, and the waiter secretly hid 2 yuan, and then divided the remaining 3 yuan to the three people, each of whom received 1 yuan.

In this way, at the beginning, each person paid 10 yuan, and now it is returned 1 yuan, that is, 10-1 = 9, and only 9 yuan per person, 9 yuan per person for 3 people, 3 x 9 = 27 yuan + 2 yuan = 29 yuan hidden by the waiter, and one yuan to go**? This question caused a huge response during the interview in New Zealand. Who knows the answer?

The penultimate question of this question is purely misleading!! Plus the waiter hid it... It's misleading... The waiter hid it within 27 yuan, why add it?? Mislead...

Are the old questions still being asked?

It's just a façade.

Actually, there is nothing wrong. You don't follow his train of thought.

You count it backwards. You can't go wrong.

There are 10 pieces that you are talking about that do not exist. You can't look at it that way.

Same.

Think: How much does the boss charge? How much did the waiter deduct the shortage? How much does each person sell late?

Each person pays ninety, a total of two hundred and seven rotten calls, the boss gets two hundred and five, and the waiter gets twenty, no problem.

You can't add up two hundred and seven and twenty, for twenty is contained in the two hundred and seven.

27 is the total amount of money spent by three people, which is 25 yuan for the boss + 2 yuan for the waiter.

So in the end, 27 shouldn't be +2 should be +$3 for them 27+3=30

You got to the point, and it was recommended to rate.

3 people spent a total of 27 yuan, including 2 yuan in the hands of the waiter, this question is problematic.

Thinking about this question from the boss's point of view, how can it be 29? Poor man.

That one dollar is in the waiter's hand, because the waiter's total is 2 yuan.

A total of 30 yuan - 5 yuan returned by the boss = 25 yuan.

Each person will be refunded 1 yuan, that is, 3 yuan.

25 (room fee) + 3 (money refunded by the waiter) + 2 (greedy money) = 30 yuan.

There will never be an answer to this question, and this question is to find a problem.

Miscalculated: 30 yuan - 5 yuan returned by the boss = 25 yuan.

25 yuan for 3 people, how can it be 9 yuan or 8 yuan

1 All this is not a problem, you are preconceived, just let the problem lead you by the nose, you have to break the angle of the problem, change the angle, you will find that there is a problem with this question, change the angle, the answer will come out!

Three people go to the hotel, open a room, the room fee is 30 yuan, 10 yuan per person, the boss wants to give them 5 yuan cheaper, let the waiter return 5 yuan to them, the waiter himself left 2 yuan, give them three 1 yuan each, the three of them are 9 yuan per person, 3x9 = 27 plus the waiter privately swallowed 2 yuan is equal to 29 yuan, ask: where did the 1 yuan go?

In fact, this question is leading you to make mistakes. You can think of it this way:

The three of them originally took out 30 yuan, but later one of them returned 1 yuan, but in fact, they took out a total of 27 yuan.

Then 25 of the 27 yuan was paid for the room, and 2 yuan was taken by the waiter.

This time, the guest will provide a total of 9*3=27 yuan in cash.

Among them, the actual accommodation fee is 25 yuan, and the waiter is greedy for 2 yuan in the payment of the guest, so the actual total amount is 27 yuan.

The 27 + 2 yuan proposed in the title is actually a double calculation of 2 yuan, and the 27 yuan contains the 2 yuan that the waiter is greedy, and there will be an error when calculated again!!

I think I had a math problem like this when I was in elementary school, right?

What technology do you know, and you have your own time and energy, and then make a choice.

I currently use the "Star Treasure" software to learn technology, and I also earn about 1,500 yuan from doing daily tasks.

Novices have some income while learning, which is very good.

I want to too, but either I'm cheated and my efforts are in vain. Either it's very strenuous, or it's better to move bricks quickly.

Yes, what I'm doing now is hanging up and reading, and I'm a dollar an hour.

Yes, it's 20 yuan a day, to earn a breakfast money, I do this, but I can only withdraw it once a day.

Like hang-up, coding, typist, and entry clerk, don't think about it, there is a high probability that they are all fake. To give you a suggestion, you can do it for pleasure and earn, I personally tested it, at least the monthly living expenses are enough, and you can learn a lot of knowledge.

The 9 yuan spent per person has included the 2 yuan hidden by the waiter (i.e. ***25 yuan + 2 yuan hidden by the waiter = 27 yuan = 3 * 9 yuan), therefore, when calculating the composition of the 30 yuan, the 2 yuan hidden by the waiter cannot be counted, but the 1 yuan returned to each person should be added. That is: 3 * 9 + 3 * 1 = 30 yuan is just right!

You can also think about it from another angle. The three people paid a total of 30 yuan, spent 25 yuan, and the waiter hid 2 yuan, so each person spent 9 yuan, plus the 1 yuan they shared, it was exactly 30 yuan. So the dollar was found.

Nonsense, you think, if you are anti-five yuan, there is only 25 yuan left, and in the end, 3 yuan is 28 yuan.

Boss: 25 people: 3 junior two: 2 (the last left.)

It's not equivalent to 9 yuan per person, and Xiao Erzang's is also equivalent to what they pay.

Earned $2.

8 yuan bought a chicken, 9 yuan was sold, and 1 yuan was on the body.

10 yuan and buy it again, then I will -9 yuan.

If you sell 11 yuan, you will earn 2 yuan.

Or: According to the question, this person can make a total profit of 2 yuan.

Among them, the total purchase of zhi** is: 8 + 10 = 18 yuan (the cost of buying chicken);

The total **** is: 9 + 11 = 20 yuan (**chicken's**) Therefore, profit = 20-18 = 2 yuan.

lost 2 yuan, in the accounts, 2 transactions were separated and 2 yuan were earned, and according to statistics, the funds for 2 transactions were only 1 yuan more, that is, 1 yuan was earned. But the most important thing is the timing of buying and selling, in fact, depending on the current situation, you can make a transaction, 8 yuan to buy, 11 to sell, you could have earned 3 yuan of trading, now only 1 yuan is earned, and finally calculated to be a loss of 2 fast!

The so-called ** merchants (middlemen) and ** in general use this principle of making the difference to make money!

You also said the problem, although each of the two transactions made 1 yuan, but the total profit was only 1 yuan.

I made 1 yuan after trading once, I still made 1 yuan after trading 2 times, isn't this a rush in vain?

Therefore, **merchants generally try to lower the purchase from the buyer** and then raise it to a more **standard sale** is also a principle! The so-called ** is risky, and investment needs to be cautious! All investors want to buy from the lowest point and then sell from the highest point!

But it's not the same as doing business.

The ups and downs of ** are unknown and unpredictable! Remember not to follow the "wind", but to let the "wind" follow you!

Earned $2.

You can think of it this way:

8 yuan bought a chicken, 9 yuan was sold, and 1 yuan was on the body.

10 yuan and buy it again, then I will -9 yuan.

If I sell it for 11 yuan, then I will make another 2 yuan.

Look at the problem, in terms of numbers, you will earn 2 yuan, and you will lose 1 yuan in terms of philosophy and logic!

It is regarded as two completely unrelated transactions, both times are to earn one piece, so to earn two dollars, in fact, from an economic point of view, less profit is a loss!

8 buys, 11 sells, and the result is the same. Hehe!

Earn 2 yuan, say 1 yuan and -2 yuan, don't talk about those useless, you don't pay taxes at 2 yuan to see if the tax bureau checks if you don't.

I don't think it should be credible After all, the competition in this industry is now, and there is still no regulation in this industry, try not to trust others.

I don't really know much about this, but for 20 yuan, I can try it.

See if his account is private or corporate.

If your money falls from the sky, hand it in! If you don't fall for it a few times, there are always people who have to have illusions.