There is a rectangular lawn. If the length and width increase by 1 / 3, the area will increase by 6.3 square meters. How about the area of the rectangular lawn?

There is a rectangular lawn. If the length and width increase by 1 / 3, the area will increase by 6.3 square meters. How about the area of the rectangular lawn?


Let the length be a, the width be B, and the area be ab
a*(1+1/3)*b*(1+1/3)-ab=6.3
16/9ab-ab=6.3
7/9ab=6.3
ab=8.1
Arithmetic solution:
If the length and width are increased by 1 / 3, then the area is the original: (1 + 1 / 3) * (1 + 1 / 3) = 16 / 9
Original area: 6.3 ÷ (16 / 9-1) = 8.1 square meters



There is a rectangle. If its width is reduced by 2 meters or its length is reduced by 3 meters, then its area is reduced by 24 square meters. How about the area of the original rectangle?


(24 / 2) × (24 / 3), = 12 × 8, = 96 (square centimeter); answer: the original area of this rectangle is 96 square centimeter



If the width of a rectangle is reduced by 1 meter and the length is increased by 2 meters, its area is inconvenient. If the length and width are increased by 2 meters, then the area is increased by 24 square meters
Finding the area of the original rectangle


Let the original rectangle be x in length and Y in width,
According to the first condition, we list x × 1 = 2 × (Y-1), that is, x = 2y-2 (formula 1)
According to the second condition, 2 × (x + 2) + 2 × (y + 2) - 2 × 2 = 24 is listed
That is, x + y = 10
By taking Formula 1 into 2y-2 + y = 10, the solution is y = 4
If y = 4 is taken into equation 1, the solution is x = 6
Original rectangle area = x × y = 6 × 4 = 24 square meters



There is a rectangle. If its width is reduced by 2 meters or its length is reduced by 3 meters, then its area is reduced by 24 square meters. How about the area of the original rectangle?


(24 / 2) × (24 / 3), = 12 × 8, = 96 (square centimeter); answer: the original area of this rectangle is 96 square centimeter



If the width of a rectangle remains unchanged and the length increases by 6 meters, the area will increase by 30 square meters. If the length does not change, the area will increase by 24 square meters?
If the width of a rectangular vegetable field remains unchanged and the length increases by 6 meters, the area increases by 30 square meters; if the length remains unchanged and the width increases by 3 meters, the area increases by 24 square meters?


Width = 30 △ 6 = 5m
Length = 24 △ 3 = 8M
Area = 5 × 8 = 40 square meters
A: the area of vegetable land is 40 square meters



If the width of a rectangle remains unchanged and the length increases by 6 meters, the area increases by 30 square meters; if the length remains unchanged and the width increases by 3 meters, the area increases by 24 square meters
How many square meters is the shape?


Width = 30 △ 6 = 5m
Length = 24 △ 3 = 8M
This rectangle used to be 8 × 5 = 40 square meters



If the width of a rectangle does not change, if the length increases by 6 meters, the area will increase by 30 square meters; if the length does not change, if the width increases by 3, the area will increase by 24 square meters. What is the original area of the rectangle?


If the width remains unchanged, if the length is increased by 6 meters, the area will be increased by 30 square meters, and the width is 30 △ 6 = 5 (meters)
If the length is constant and the width is increased by 3, the area will be increased by 24 square meters, and the length is 24 △ 3 = 8 (meters)
The original area of this rectangle is 8 × 5 = 40 square meters



A rectangular piece of land, the ratio of length and width is 2:3, length is 24 meters more than width. How many square meters is the area of this land?


If the length is 2x, the width is 3x
3x - 2x =24
So x = 24
3x = 72
2x = 48
Area = L * w = 3456



A rectangular piece of land is 24 meters long and 512 meters wide. How many square meters is the area of this piece of land?


24 × (24 × 512) = 24 × 10, = 240 square meters; a: the area of this land is 240 square meters



A rectangle, 24m in length and 5 / 12 in width. What's the area of this square meter


It is 24m long and 10m wide
The area is 240 square meters