Question

1. The Length and the breadth of a rectangular piece of land are 500 m and 300 m, respectively. Find

(i) Its area (ii) the cost of the land, if 1 m2 of the land costs ₹ 10,000.​

Answer 1

$\longrightarrow{}$ Before, finding the answer. Let's find out how we can find the answer.

Here, we have to find the Area of the Rectangular field. To find the Area, we have to use the formula of :

$\boxed{\sf Area \: of \: Rectangle = l \times b}$

After, we find the Area. We have to multiply the Area with the Cost.

____________________

$\rm\color{red}{Given :}$

$\color{red}\longrightarrow{}$Length = $\sf\color{green}{500~ m}$

$\color{red}\longrightarrow{}$Breadth = $\sf\color{green}{300 m}$

$\color{red}\longrightarrow{}$Cost = ₹ $\sf\color{green}{10,000}$

$\rm{Solution :}$

Area of Rectangular Field = $l \times b$

$\rm{= 500\times 300 m²}$

$\color{red}\underline{\underline{ \tt{{ \boxed {= 150000 m²} }}}}$

$~~~~~~~~~~~~~$$\small\textbf{∴ Area of Rectangular Field is 150000 m².}$

Cost of Land = $Area \times Rate$

$= 150000 \times 10,000$

$\color{red}\underline{\underline{ \tt{{ \boxed { = ₹ 1500000000} }}}}$

$~~~~~~~~~~~~~$$\small\textbf{∴ Cost of Land is ₹ 1500000000.}$

Answer 2

Given:-

• Length of rectangular piece of land = 500m

• Breadth of rectangular piece of land = 300m

To Find:-

• Area of rectangular piece of land

• The cost of the land if 1m² of the land costs ₹ 10,000

Solution:-

(i) Area of rectangle = l × b

= 500 × 300

= 150000 m²

(ii) Cost of land for 1 m² = ₹ 10000

Cost of the land for 150000 m² = 10000 × 150000

= ₹ 1500000000

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