Question

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

(i) its area
(ii) the cost of the land ,if 1m2 of the land cost $ 10,000.
​

Answer 1

Answer:

(i) length = 500m

breadth = 300m

area = I x b

500 x 300

= 150000m^2

(ii) cost = 150000 x 10000 = Rs 1500000000

Answer 2

Given:

The length and the breadth of a rectangular piece of land are 500m and 300m respectively.

To find:

i) The area of the rectangular piece of land.

ii) The cost of the land, if 1m² of the land cost $10000.

Concept:

The area of a rectangle is equal to the product of its length and breadth or width.

The cost of a rectangular field is equal to the product of its area and the cost of per m² or cm² of the field.

Calculation:

i) The area of the rectangular piece of land.

We know that, the area of a rectangle is equal to the product of its length and breadth.

$Area = l \times b$

Given that, the length and breadth of a rectangle are 500m and 300m respectively.

By plugging the given values in the formula, we get the following results:

$Area = l \times b$

$\implies Area = 500 \times 300$

$\implies Area = 150000$

ii) The cost of the land, if 1m² of the land cost $10000.

We know that, the cost of the land is equal to the product of its area and the cost of per m². Therefore,

$Cost = Area \times 10000$

$\implies Cost = 150000 \times 10000$

$\implies Cost = 1500000000$

Hence, thee area of rectangular piece of land is 150000m² and its cost is $1500000000.