Buying something intelligence questions, urgently needed, to steps

The loss is theoretically 200 yuan. Actually, 197 yuan. 1.

The money was found to be fake. It is equivalent to him losing 100 yuan. 2.

He found someone else for 79 yuan. It means that he lost another 79 yuan. 3.

His original price was 18 yuan, and the seller got 21 clothes, which is equivalent to not getting a penny. Theoretically lost. In fact, it is equivalent to a loss of 18 yuan.

4.The theoretical loss is 100 + 79 + 21 = 200 yuan, but the actual loss: 100 + 79 + 18 = 197 yuan.

It's 97. The neighbor obviously didn't lose money, and then looked at the young man, he earned 18 yuan as a gift and 79 as a gift and 79 as the boss found, a total of 97 yuan, in other words, the boss lost 97 yuan. The neighbor was misleading, and the 79 that the boss was looking for was the neighbor's, not his own.

The boss's loss = the original price of a piece of clothing 18 + the money found for the guest 79 = 97 yuan! The sum of these two things has been lost all along.

It's strange I always think it should be like this: The neighbor took the fake money, so at this time the neighbor took 100 fake = the boss took 100 real = the guest took 79 + 21 yuan in change. The boss sold the clothes at a cost price of 18 yuan for 21 yuan, so the boss did not lose money here but made a profit of 3 yuan.

The neighbor lost 100 yuan, and the guest earned 79 + 21 (100) yuan. The neighbor found out that it was fake money, and the boss paid the neighbor 100, so now there is no neighbor's business, which is equivalent to the boss who collected the fake money and found the guest 79 yuan. So I lost 79 yuan + 21 yuan for a piece of clothing.

But at the same time, because the cost of clothes is 18 yuan, the profit is deducted by 3 yuan: 79 + 21-3 = 97 I don't know if it's right to think like this- -

From the perspective of a single person's balance of payments:

Look at the boss first.

The money received by the boss: 100 yuan in change from the neighbor;

The money spent by the boss: 100 yuan for the neighbor, 79 yuan for the guest, and 18 yuan for the cost of the clothes, the total expenditure is 100 + 79 + 18 = 197 yuan;

The money that the boss loses is the money spent minus the money earned: 197-100 = 97 yuan.

Look at the guests again.

The money received by the guest: 79 yuan recovered by the boss, and 18 yuan for the cost of clothes, which adds up to 97 yuan;

The money spent by the guest: 100 yuan of fake money is 0 yuan;

The 97 yuan that the guest actually earned was the boss's loss.

Neighbor. Money spent by neighbors: 100 yuan exchanged for the boss;

The neighbor's income: 100 yuan from the boss;

So the neighbor's income and expenditure are balanced.

The boss loses 97 yuan, and the guest earns 97 yuan, so the income and expenditure of the whole process are also balanced.

25 is too little, isn't it? If you don't accept it as the answer, who will you scold? Isn't that ten-capable of dying?

Yes, be kind! Can't be too unqualified

1/2+1/3+1/9=17/18

I borrowed 2 children first.

A(34+2)*1 2=18 (pcs).

B(34+2)*1 3=12 (pcs).

C(34+2)*1 9=4 (pcs).

34 + 2) - (18 + 12 + 4) = 2 (pieces) The remaining 2 children go back to their respective homes.

1/2+1/3+1/9=17/18

34 (17, 18) = 36.

36*1 2=18.

36*1 3=12.

36*1 9=4.

A: A18, B12, C4

Join two children (not orphans).

There were 36 people at this time.

A got 18 people (36 2).

B received 12 (36 3).

C got 4 people (36 9).

The total number of orphans separated is: 18 + 12 + 4 = 34

At this time, the extra 2 people start to be added, and they can be returned to their parents

First find two orphans who don't go to the orphanage, add them and calculate them.

A18B12

C4 Finally, let the two men continue to wander.

I don't think the above answers are perfect, because the question says that A wants 1 2 of the number of "orphans"....

It's not the number of children, you can count it by borrowing two, but it's not the number of "orphans" anymore.

A18B12

C4: You can add two more people to it.

When the division is done, get rid of these two people.

The middle one, one on each of the four sides, is separated.

The square has six sides, take it out! A bird is separated by a piece of noodles! (hehe, nonsense).

First of all, a little IQ can tell that this is a brain teaser.

So the first few floors, I don't know, don't answer blindly.

1. Cut the square, cut it into 4 shorts, and then separate them.

2,5 "Positive" "square" small "shaped" birds (how apart?) ）。

One bird is placed on the square, and the other four are pinned in the four directions outside the square.

It's simple,,

Seeing does not represent a bird, and four horizontal means a square—

Put one in the middle and one on each of the four sides.

Add a mouth in front of the bird - chirp.

Isn't it all separated.

There is no requirement for how the 5 birds are arranged.

First of all, I want to ask lz a question, what is the number 290? The number 290 is a non-existent concept (see the explanation below).

The problem is 270 + 20 = 290;300-290=10 (yuan) These two equations cannot be established at all, that is to say, the meaning of these two equations is unknown!

The normal equation should be.

One party's expenditure = one party's income, for example, three guests spend 270, waiter income 20, and boss income 250

So 270 = 20 + 250

Now look at the number 290, the sum of expenses (270) and income (20)? What's that? Don't forget that the 270 yuan spent by the guest includes 20 yuan of the waiter's income, and these two numbers can only be subtracted in the equation, and there is no reason to add them, or they are placed on both sides of the equation.

Similarly, what does 300 in equation 300-290=x represent? What does 290 stand for?

300 is the initial expenditure of the guest, 290 is the actual expenditure of the guest and the income of the waiter, the subtraction of these 2 numbers has no logical relationship, it is meaningless, this is just a stealing concept.

If you have to use the equation of 300, it should be 300 (the customer's initial money) - 30 (the customer's **'s money) - 20 (the waiter's income) - 250 (the boss's income) = 0

Otherwise, the boss said it's free today!!

The waiter hid it, and the waiter hid it for 300

And the customer paid three hundred! That's six hundred???

In fact, if you think about it carefully, the boss said how much the discount is, but it is just a mouthful of words, and it can't calculate the actual content! In fact, these 300 are the customer's, the 50 is also the customer's, and when the 30 is returned, each person is not 90!! It's $280 divided by 3!! =

Isn't it exactly 250 + 50 = 300 if you hide 20?

It should be 270 = 250 + 20, and that three hundred doesn't exist at all! The three of them took out 270 yuan and gave 250 yuan to the boss and 20 yuan to the waiter, which has nothing to do with three hundred!

Well, that's an interesting question.

In fact, the 20 fast that the waiter stole and took also needed the three of them to pay.

The 20 pieces taken by the waiter are 270 miles. It's 270-20 = the boss took it. 270+20 doesn't make sense.

90*3 = 270 is the money paid by the 3 guests, which should be added to the 30 yuan that came to them, and the 20 yuan that the waiter should not take.

In fact, the boss charged each of them, two people for a total of 250 plus the waiter, and 20 for a total of 270; You can't count the waiter's private collection to everyone, in that case, plus the boss's return of 50-20=30 is 320;

I don't understand the answer on the first floor, I said what I think. This question is leading you to a dead end, and you will understand if you abandon the question. The three of them paid a total of 270 This is true, who did the boss take these twenty to, of course, in the hands of the waiter. Think of it that way.

1.An airplane can carry fuel for up to 9 hours. When the plane goes downwind and can fly 1500 meters per hour, and when it returns to 1200 meters per hour against the headwind, how many kilometers can the plane fly at most must fly back?

2.After a two-digit number is followed by two digits in the sky, the four-digit number is 2768 larger than the original two-digit number, what is the four-digit number to find the composition?

I don't have any questions, but I have 1-8 grade learning games (language, mathematics and English).

The water is 15cm high, and the water is 5cm upside down, and there is no water to know a total of 20 minutes and 5 points of air.

1200 20*15=900ml=The premise of calculating this result is that when the water bottle is placed in the state hood, most of the bottom is in the shape of a cylinder. Use this part of the comparison book to calculate the results.

I'm a teacher, I'm right.

If there is x liter of water, then the upper air has (

I put the calendar upside down and I don't rent water early by 5cm, it's air! Limb base.

x：15=（：5

x=x= has a liter of water in it.

15/(15+5)*1200=900ml

The premise of calculating this result is that when the water bottle is placed in the right state, most of the bottom is in the shape of a cylinder. Use the proportion of this part to calculate the result.

It's easy, it's the best to condense it, it's all high-level questions, and it's not the most difficult, it's very suitable for smart students