Math problems are simple! But I won t!

In the United States, there is a strange problem called "the king is a stingy man": in order to gain the support of the poor people, in order to gain the support of the poor people, in order to have a good reputation of "philanthropy", King Pompon decided to give 1 dollar per man and 40 cents per woman (1 dollar equals 100 cents), but he didn't want to spend too much money, so his majesty came up with a clever plan, and decided to land his helicopter in a poor mountain village at 12 noon, because he knew very well that at that time, 60 percent of the people in the village The village has an adult population of 3,085 people, with children negligible, and there are more women than men How much does this "calculating" king have to give?

How many men and how many women are there in the mountain village, the question is not explained, and the conditions are incomplete, can this question be done?

Suppose there are 1000 men in the village, because 60% of the people are hunting, so the king can only meet 400 men, plus 2085 women who take care of the housework, so the king's handout money should be 1 400+ dollars) If there are only 500 men in the village, then the king can only meet 500 men (people), and his expenses should be 1 200+ dollars) Suppose there is not a single man in the village, and all the kings meet are women, His handout expenditure turned out to be $1,234! In all three cases, the number of answers was exactly the same!

What a strange question! Let's see if you can debunk the weirdness of this question with the whole knowledge you have learned Suppose there are men x people in the village, then women have (3085-x) people, and the amount of money the king gives is: (dollars) It turns out that the amount of money the king gives has nothing to do with the number of men in the village!

The original question is like this, you can read it.

Correctly (visually) two women on top of one man, the number of men is assumed to be fixed.

The repetition of each burden repeatedly.

Assuming a total of x pages, then 65%x-35%x=90. So x=300.

The order should be A, B, C.

Set the time for a bottle of water to be used for x.

1) Press A, B, C.

Time for A x Time for B x + 2x = 3x

x is the time taken by Class B A to draw water, 2x is the time taken by B to draw water) C time x + 2x + 3x = 6x

x is the time taken by Class C A to draw water, 2x is the time taken by Class C B to draw water, and 3x is the time taken by C to draw water).

Therefore, the total time spent by the three people is x+3x+6x=10x

2) In the order of B, A, and C.

A time 2x+x=3x

B takes 2x time

C time 2x+x+3x=6x

The total time spent by the three is 3x+2x+6x=11x

3) The other four sequential methods are the same as above.

Only pressing A, B, and C takes the least amount of time.

（x+100）/100] ²=72（x+100）²=72×200=14400∴x+100=120

x = 20 (percent).

The annual income of technological transformation increased over the previous year (500,000 yuan), the income of technological transformation in 2012 increased over the previous year (600,000 yuan), and the percentage of the increase in the income of technical transformation in 2012 compared with the previous year is the growth rate of the income of technical transformation in the current year is (6 5) 6 100 = 1667 (percent), the growth rate of technical transformation income in 2011 was percentage), and the income of technological transformation in 2010 was 50,000 yuan).

The team will answer for you

The first question is very simple: 50*(1+x)*(1+x)=72, and the solution is x=20%.

Therefore, the increase in the income of technological transformation is 10%, and the technical transformation fund in 2011 is 60 (10,000) and the income from technological transformation in 2010 is y, then there is a 2011 technical transformation income of y + 15-10 = y + 5 in 2012 the income from technical transformation is y + (15-10) * 22 10 = y + 11 from the previous 10% increase, there is y + 11 =

The solution is y=55

This kind of question, if only given the money at the beginning and two years later.

The formula is: starting money * (1+x) squared = last money.

The cube root is.

The cube root is.

The cube root of 2160 is.

The cube root of 21600.

The cube of 6 is equal to 216, and the cube is equal to, the cube root of 10 = the cube root of 100=

2160=6 3 10,21600=6 3 100 There are no full cube roots here, so they don't have full cube roots either. You can look up the cube root table.

Or according to the above calculation, you can also find it on the Internet:

The cube root is.

The cube root is.

The cube root of 2160 is.

The cube root of 21600 is.

Let the distance between A and B be x, then: the time taken from A to B is x 10, and the time taken from B to A is x 15, then the total time taken to go back and forth is x 10 + x 15 According to the known conditions, the total time taken is 50s

So, x 10 + x 15 = 50

Solution: Multiply both sides by 30, 3x+2x=1500

5x=1500

x=300So, the distance between A and B is 300m

1. After taking it 4 times, the apple is gone, and the pear is 8. Total 24.

2. A3, let this number be x, 37-4=3x, and solve x=11.

4. Suppose to buy x pairs at the wholesale price, there is a problem, 20 (x-10) = 15x, and the solution is x = 40. A: Buy 40 pairs.

There are 48 in total.

By definition, the answer d is wrong)

3.Solution: Let the unknown number be x

37-4=3x, so x=11

4.Solution: Set up to buy x pair of gloves.

From the meaning of the title; 20（x-10）-15x=50

So x=50

1.After taking (4) times, the apples are gone, and there are still 8 pears left. There are 24 apples and pears.