Intelligence test, enthusiastically participate!! Mathematical Intelligence Test !!!! Everybody help

28 m !!

Let's start with an example!! Set the whole journey to 100 meters!! A speed of 10 meters seconds 10 seconds after B ran 90 meters to get B speed 9 meters seconds seconds to run.

Seconds later, C ran 80 meters to get C speed meters seconds seconds to run.

A speed - C speed) multiplied by the time A runs is the answer!!

Rice!!!

30-200 s (s is the distance, s is greater than 20 and tends to infinity).

Therefore, the distance between C and A is between 20 and 30.

It's easy if there's a total distance.

You won't know if you run once!

v C * (10 v B) + 20 = the number of meters behind C It is certain that the distance is less than 30 and greater than 20

Since we don't know the total distance, we can't find it anyway.

There is no solution to this question. Either the landlord forgot about the other known conditions.

It should ask for 40, because.

A velocity - C velocity) multiplied by the time A runs.

Intelligence test, enthusiastically participate!!

Bounty Points: 20 - 14 days and 22 hours until the end of the question.

3 people race, and when A finishes running, he is 10 meters behind A. When B finishes running, C is 20 meters behind B. How many meters behind A when A finishes running, how many meters behind C A?

Only maybe 30 meters away. Can be added!

There's no total length, there's no way to solve it, that's the answer...

When A reaches the finish line, B is 10 meters behind A, and C is 20 meters behind B to draw a picture.

A, B, C.

10m 20m |

30 meters, B is 10 meters behind A, C is 20 meters behind B, and C is 30 meters behind A.

Your question is obviously lacking.

Lack of total distance... And it has to be assumed to be a uniform motion.

Otherwise, it is not possible to calculate the velocity ratio for the three of them.

Let's add to the title.

The end result is.

Subtract 200 for 30 times the distance (minus 200 for 30 times the distance).

Let the single digit be x and the ten digits be y

10x+y）/（10*y+x）=4/7

The solution yields x y=2

So there are 21, 42, 63, 84,

Let the original number be 10a+b, then the new number will be a+10b

7（a+10b）=4(10a+b)a=2b

The original two-digit numbers were 21, 42, 63! There are 3 such two-digit numbers.

At first glance, the first option seems to be more beneficial to the staff.

But in reality, the second option is advantageous.

The ratio between the manager and the managed is IQ!

The first option (an increase of 500 yuan per year).

10,000 10,000 = 20,000 yuan in the first year, 10,250 10,250 = 20,500 yuan in the second year, 10,500 10,500 = 21,000 yuan in the fourth year: 10,750 10,750 = 21,500 yuan, and the second plan (increased by 125 yuan every six months).

10,000 in the first year 10,125 = 20,125 yuan in the second year 10,250 10,375 = 20,625 yuan in the third year 10,500 10,625 = 21,125 yuan in the fourth year: 10,750 10,875 = 21,625 yuan.

Let A have 4x B have 3x, then (4x-8) (3x+8)=4 5, and the solution is x=9, so A has 36 yuan, and B has 27 yuan.

Somebody gets old all of a sudden. Answer; Wife.

Isn't this a math problem A36 B27

The first time the lights were turned off, no one applauded, indicating that it was not a black hat, and there was more than one. If there is only one, then the black hat will clap his hands, because all he sees is the white hat.

If it's two, then the second time the lights are turned off. Wearing a black hat will only see a black hat wearing a black hat B, and this black hat A is sure that he is also wearing a black hat. But they saw more than just one wearing a black hat.

The third time the lights were turned off, someone clapped their hands, indicating that only three people were wearing black hats. Because the person wearing the black hat only sees two people wearing black hats, and if there are only two people wearing black hats, then the second time the lights are turned off, they should clap their hands.

So there were only three people wearing black hats.

Solution: Decimal part: (

Integer part: This number: 2+

The meaning of the question is that the decimal part of 9-3 = 6 times is, so the decimal part is.

The integer part of the number is.

So this decimal is.

This number is.

The last digit of the number multiplied by 3 is 1, which is 21, so this number is.

Let this decimal place x

So x=substitute x.

So the original number is the integer part, the integer part + the decimal part = the original number).

Multiply by 3 yes, multiply by 9, of course, this number is.

1.Forty-three.

2.Rock-paper-scissors.

Scissors = 2, Rock = 0, Cloth = 5

3.Just add a word, and look at it horizontally, which is rushing.

4.Glyph plus a stroke, and the word.

Reverse it, become 9, then divide 129 by 43=3

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 according to the cost of 18 yuan plus 3 yuan and the profit 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.