Now there are four numbers. Take the sum of every three numbers as 22.24.27.20. What are the four numbers?

Let these four digits x, y, Z, M
22 + 24 + 27 + 20 = 93, because each number is added three times,
Then 3 (x + y + Z + m) = 93
x+y+z+m=31
Then subtract 22, 24, 27 and 20 from 31 to get four numbers
9,7,4,11 respectively

Greek mathematician Diophantine interesting topic: now there are four numbers, take every three of them to add, then the sum is 22, 24, 27 and 20 respectively, find out how many of these four numbers are______ ．

Let the sum of the four numbers be x, then 22 + 24 + 27 + 20 = 3x, x = 31, the four numbers are 31-22 = 9, 31-24 = 7, 31-27 = 4, 31-20 = 11

All four numbers, three numbers are extracted each time, and the four numbers obtained are 22.24.27.20 respectively. What are the four numbers?
It's time for class
There are four numbers, three numbers are extracted each time, and the four numbers are 22.24.27.20. What are the four numbers?

Don't worry
Three numbers are extracted each time and added four times in total. The results are different
That is to say, every number is not taken once, that is to say, every number is taken three times
So if you add up the four sums, is that three times the sum of the four numbers?
（22+24+27+20）/3=31
If you know the sum, the first number is 31-22 = 9, and the others are 7, 4 and 11 in turn
Answers 9, 7, 4, 11

Area formula of rectangle, square and trapezoid?

Rectangle: length × width
Square: side length × side length
Trapezoid: (upper bottom + lower bottom) × height △ 2

The formula of cuboid calculating volume according to area

.V=Sh=abh
Sweat

What is the formula for calculating the area of a rectangle?
Be careful

Rectangle area = length * width, that is, the product of the multiplication of a length and a width of a rectangle

Rectangular area formula?

S=aXb

Area formula of rectangle
Length × width is a rectangle formula

Area of rectangle = length of rectangle x width of rectangle
Do not understand can ask, please adopt, thank you, I wish learning progress

What is the formula for the bottom area of a rectangle and a square

Rectangle: length by width square: side length by 4

How to express the bottom area formula of rectangle with letters

S=a*b

Now there are four numbers. Take the sum of every three numbers as 22.24.27.20. What are the four numbers?