In the second grade math problem, 9 out of 10 people get it wrong, can you do it right?

Solution: 79 + 18 = 97 (yuan).

Simplifying this issue:

1.Everyone understands that the neighbors have not lost a penny.

2.The young man got 79 yuan and a merchandise worth 18 yuan for nothing.

3.Then in this transaction, Boss Wang's loss is the young man's gain for nothing.

That is: Boss Wang lost 79 + 18 = 97 yuan.

If the gift is calculated at the cost of 18 yuan plus 3 yuan for a total of 21 yuan, it is a loss of 100 yuan.

So, mathematically speaking, it's $97.

But from an economic point of view, it's 100 yuan.

It should be 79 + 18 = 97 yuan. The confusing part of this question is that the neighbor is mixed in, in fact, you can put aside the yuan that the neighbor doesn't think about, because the neighbor doesn't have any loss, just swap 100 out and in. The boss found the young man 79 and gave him another gift 18 (cost).

So a total loss of 97 yuan.

97 yuan, that's right, haha. Find 79 yuan for young people and add up the cost of 18 yuan!

197 yuan, calculation method: cost 18 + 79 yuan for young people + 100 yuan for the neighborhood.

The cost is 18 yuan + 79 yuan for the young man + 100 yuan for the neighborhood.

The practical problem can be simplified as: collect 100 counterfeit bills, pay something that costs 18 yuan and 79 yuan in cash.

100 counterfeit notes for 100 change].

In the process of trading, if you earn 3 yuan, you lose 100 [3-100], so you lose 97

100 + 79 + 18 = 197 (yuan), Boss Wang lost 197 yuan in this transaction.

Assuming that it is a 100 yuan real coin, Boss Wang earned 3 yuan, but because it was a 100 yuan counterfeit coin, Boss Wang lost another 100 yuan, that is, Boss Wang lost 97 yuan. (It is worth noting that the neighbor exchanged 100 yuan of change for 100 yuan of real money in this transaction, so the neighbor did not lose and did not make a profit!) ）

Method 1: The overall method, regardless of the neighborhood, because he did not lose or earn, the rest is the boss and the consumer with counterfeit banknotes, and the reason for the loss is the fault of the fake 100 banknotes, and there are virtual 3 pieces in the whole, so it is 100-3 = 97 yuan;

Method 2; Anyway, assuming that the fake banknote 100 is real, then the boss will earn 3 yuan. And that's a fake banknote, the boss has to pay 100 real money, and what is earned by subtracting what is paid is what the boss really loses, that is, 100-3 = 97 yuan;

Not counting the money earned, I only lost 97 yuan.

The loss of 100 yuan was calculated.

I miscalculated.

It should be a loss of 176

The neighbor changed him for 100

He gave 79 to others and he had 21 yuan left.

Answer: Originally, it was a loss of 50 yuan, but there was still 21-15 = 6 yuan in the shoes, so the loss was 50-6 = 44 yuan, as for the change of 50 yuan to the neighborhood, it didn't matter, it only played a role in the obstacle.

Direct loss: 79 + 18 = 97 (yuan) Indirect loss: 79 + 21 = 100 (yuan) (in this transaction, his labor income is 3 yuan, just imagine, if it is not because of the counterfeit money, will Boss Wang increase 3 yuan at this time?)

Isn't that a loss? Why do you get it wrong? 1. Many people fall off the horse at "borrowing 100 yuan".

197. In fact, the relationship between Boss Wang and the neighborhood is only the relationship between borrowing 100 yuan and repaying 100 yuan, and no one has gained or lost in the process. 2. Many people do not include the 3 yuan of labor earned in the transaction when calculating money.

$97 These are the two main wrong places.

Boss Wang lost 97 yuan in this transaction. The loss is the commodity and the money found, that is, the cost price of the commodity is 18 yuan plus 79 yuan found, for a total of 97 yuan.

The answer is: Boss Wang lost 100 yuan (lost counterfeit banknotes), the cost of the gift was 18 yuan, and there was 21 yuan left in the real currency in his hand, so in this transaction, Boss Wang's loss was 100 + 18-21 = 97 yuan.

First of all, the cost of losing 18 yuan.

Secondly, after receiving fake money, he gave the customer 79 yuan for nothing.

Again, I returned 100 yuan for nothing.

The result is 18 + 79 + 100 = 197 yuan.

The correct answer is: 79+18=97

First, the boss used the 100 yuan counterfeit bill given by the young man to exchange change with the neighbor, and then found 79 yuan for the young man.

That is to say, now 21 yuan is paid.

Then the neighbor found out that the money was fake. The boss gave the neighbor 100 yuan, 100-21 = 79, that is, now the loss is 79 yuan.

79+ the price of that gift (18 yuan).

79 + 18 = 97 yuan.

That's right, 97 yuan, the neighbor didn't make a loss, the young man earned 79 yuan and a gift, the whole process is conserved, so the boss lost 79 yuan 18 yuan 97 yuan, Xixi

There are 2 answers, one is 97 yuan, the other is 100 yuan, 97 is calculated according to the cost, and 100 is calculated according to the list price.

The loss was 197 yuan.

The cost of the gift is 18 + 79 + 100 of the neighborhood

$176 is not. He earned 3 yuan from the price and price of the goods, and then gave 79 to the young man and 100 to the neighborhood, which is 176...

If the neighbors deceived him with the price, it would be 276.

100+ for neighbors, 79+ for youth, cost 18 = 197