Where did the ten dollars go, and where did the other 10 dollars go?

They actually paid 90 3 270, and they could have given 250, but the waiter was greedy for 20 yuan. 270 20 250, which happens to be the ** after the discount.

The three of them spent a total of 90 * 3 = 270 yuan, not plus the 20 kept by the waiter, but the 30.

There is no such thing as a $10 problem.

It's a matter of you counting.

It should be 270 minus 20 yuan is 250 yuan, and the 50 yuan is 30 yuan for the guest, and the waiter keeps 20 yuan privately.

300 yuan = 250 yuan (rent) + 30 yuan (recovered money) + 20 (left by the waiter).

There's nothing wrong with money. It was spent on the rent and the waiter's total of 270 yuan, 90 yuan per person.

The boss there is very simple.

The boss gave back 50 yuan (300-50=250).

The waiter took 20 yuan.

The three people each got 10 yuan back.

So at the boss's.

Don't overcomplicate it.

One person took out 90 yuan.

270 yuan for three people.

The accommodation fee needs to be 250 yuan + 20 yuan for the waiter's private stay = 270 yuan.

So, there is no such thing as a $10 problem.

It's a number.

Word trap, one person takes out 90 yuan.

270 yuan for three people.

The accommodation fee needs to be 250 yuan + 20 yuan for the waiter's private stay = 270 yuan.

If you're stupid, you don't understand

Later, they each paid 90 yuan, which was 10 yuan less than the original. So there's no 10 yuan.

Damn, I almost fainted!

The three people spent a total of 90 * 3 = 270 yuan, not plus the 20 kept by the waiter, it should be minus 20!! 270-20 250 (rent).

Only gave them 10 yuan per person, they thought that the boss had made a 30 discount, and they made 3 * 90 = 270 270 + 30 = 300

250 yuan, plus 30 yuan back, plus 20 yuan left by the waiter, is exactly 300 yuan.

250 yuan 3 is not equal to 80.

So the ten yuan is still in the hands of the three of them.

Why add $20 to the waiter? It should be minus 20!! Because the 20 yuan is within 300!

I've encountered this kind of problem before, and if the algorithm is not right, it is easy to be misled.

In fact, there is no such thing as 10 yuan.

It's actually a tempting question of thinking wrong.

That's ten dollars already counted!

I think it's at the boss's place.

You took it because you didn't want to be 250

The ten dollars are with me.

It's your algorithm that's wrong.

Your problem is incomplete, but the title should be: My brother borrowed 500, I borrowed 500 from my sister, I bought a pair of leather shoes and used 970. There are 30 yuan left, Chi Xiao returned 10 yuan to his brother, 10 yuan to his sister, 10 yuan to his own branch, 490 to his brother, 490 to his sister, 490 490 = 980.

Plus your own 10 pieces = 990. And 10 pieces to go to **?

This question mainly confuses your thinking, and your thinking will be mistaken in the process of reading this question.

borrowed 500 yuan per person, and gave them 10 yuan per person, which is equivalent to you borrowing 490 yuan per person, a total of 980 yuan, and 970 yuan for buying a pair of leather shoes, 980--970=10, and 10 yuan is left in your hands, so it's just right.

Hey, it's this kind of question again.

How can it be 290? Since everyone was finally returned 10 yuan.

That is, I only paid a total of 270 yuan.

So the so-called 290 is ** coming?

I remember that the topic I originally looked at was more "reasonable" than this one, and the 290 there was very "reasonable".

Therefore, 10 bucks here, it doesn't make sense.

Haha, just found the original question:

There are three people who came to our hotel to open a room, the hotel's ** was 300 yuan a room, these three people paid 100 yuan, just met the hotel to do activities, as long as 250 yuan, we cheaper them 50 yuan, 50 yuan back to them. They thought that fifty yuan was not easy to divide, so they gave the waiter a tip of twenty yuan, and each person divided ten yuan. Each of them gave ten yuan, which means that one person gave ninety yuan, and the three of them gave two hundred and seventy yuan, and gave the waiter twenty yuan in tips, which added up to two hundred and ninety yuan, but...

At first they took out 300 yuan, but then it was only 290 yuan, so where did the other ten yuan go?

That's not how it should be!!

The tip they gave to the waiter was 20 yuan out of the 50 yuan refunded, so it was 250 + 20 to be added, (the remaining 30 were divided by themselves), not 270.

If you want to calculate 270, you should look at it from a different angle, from the total cost and the total recovery.

Paid: 300, 50 recovered, then paid: 20, and then divided equally. So 300 + 20-50 270 (purely mathematically, no one would do that).

No matter how you get it, the 10 yuan doesn't match the boundary, it just mixes the two algorithms together and fools people

They started with a total of 300 yuan.

Then I got a total of 30 yuan.

It cost a total of 270 yuan.

Except for the 250 yuan taken by the boss.

Another 20 yuan was taken by the waiter.

They are that to ten dollars per person.

It's not a total of ten dollars.

What does 490 + 490 +10=990 mean? In fact, it is meaningless, don't get around it. 10 yuan does not exist at all.

970 (buy leather shoes) +20 (return 10 yuan for each parent) +10 (yourself) = 1000;(- After consumption + return to parents + money left on their own = 1000 is a lot).

In the end, each parent will be repaid 490 yuan + 10 yuan after buying shoes = 1000 yuan (- 500 yuan = 1000 yuan for each of the money borrowed by the parents after consumption).

Don't be misled by intuition, to sort out the concept, which 10 yuan simply does not exist....

Hehe, get 500 + 500 = 1000.

Expenditure 970 + 20 = 990.

10 left on their own

It's exactly 1000 that 310 is the rest of buying shoes, you pay them back 20, that is, you still owe 980, you buy shoes and spend 970 plus 10 fast in your hand, isn't it just right? **10 more? The 20 to the parents is the rest, not spent.

In the future, if you encounter such problems, you can directly calculate the income and expenditure.

Answer: I borrowed 500 from my father, 500 from my mother, and 970 for a pair of shoes. 30 yuan left, 10 yuan for Dad, 10 yuan for Mom, 10 yuan for himself, 490 for Dad, 490 for Mom, 490 490 = 980.

So far, it's all right.

In the end, your own 10 yuan should not be added, but should be subtracted from your own 10 yuan = 970 = money used to buy leather shoes.

The leather shoes you buy and the 10 yuan in your hand (970 + 10 = 980 yuan) are the money borrowed from your father and mother (500 0) + (500 0) = 980 yuan.

In fact, the three of them only spent a total of 270 yuan: 250 yuan at the boss, 20 yuan at the waiter. 250 + 20 = 270 yuan, don't care about 300 yuan at all.

The main key to solving this problem is: 270 + 20, 270 contains the 20 yuan taken by the waiter, and if you add 20, it will be repeated. The correct one should be:

270 + 30 yuan returned to those 3 people = 300 yuan.

If it can't be added like this, the 20 yuan that is secretly hidden should be counted in the house price. And you can't add that 30 yuan to be refunded.

So it should be: 3 x 90 = 270 yuan + 30 yuan = 300 yuan.

It's in the boss, because they first came out of 100 yuan, and then each person came back 10 yuan, first 30 yuan can't be counted as their money, to use 300 + 30 = 330 yuan, and then subtract, they later got 10 yuan Yes, it is 90 yuan per person, 3927, that is, 270 yuan, plus 30 yuan not for them, plus 20 yuan for the waiter, that is, 320 yuan, with 320-50 = 270 yuan.

Pay 300 The waiter secretly hid 20 and returned 30

It is equivalent to using 270 accommodation per person in the end can also share 30 270 accommodation fee + 30 returned money = 300

Ten dollars for each person. It's three times ten. That's thirty. Boss that two hundred and five. Waiter twenty. Three hundred.

At first, he borrowed 500 yuan from his parents, and then repaid 10 yuan per person, and finally borrowed 980 yuan and bought 970 yuan for shoes, leaving 10 yuan in his own hands. As for 1000-980=20, 20 is the amount of repayment, not the amount of money left after buying shoes, and this 20 yuan has nothing to do with the 10 yuan in your hand, nor does it have anything to do with "there is still 10 yuan" (it does not exist at all). 1000-980 = 20, 20 - 10 yuan in your own hands = 10 yuan?

The latter calculation is not valid, and the number of repayments and the remaining amount cannot be marked with a = sign.

A: I borrowed a total of 1,000 yuan, repaid 20 yuan, and owed 980 yuan.

The remaining 10 yuan is included in the 980 yuan owed, and if it is added up, it will be double-counted.

So, that ten dollars is in your pocket.

Those ten dollars are with those three people who live in the hotel! (300-20-30 = 250 yuan, 250 3 = yuan.)

The three have paid a total of $300 to the store. The shopkeeper only charges 250 yuan, which means that each person should pay yuan; Plus the refund of 10 yuan is equal to yuan. Obviously, the three people actually paid only 90 yuan each, which was less. Yuan - that's the ten yuan! Yuan.

970 2 should be owed 485 people to each person plus 30 yuan recovered, which is 1000.