Question

If a rectangular plot is 50 cm long and 30 cm wide. What will be the cost of the plot, if 1m2 costs Rs. 100:-

Answer 1

Given:

• Rectangular plot is 50 cm long and 30 cm wide.

• 1 m² cost = Rs. 100

To find out:

Find the cost of the plot ?

Formula used:

Area of rectangle = length × breadth

Solution:

We have,

Length,l = 50 cm ⇒ 50/100 = 0.5 m

Breadth,b = 30 cm ⇒ 30/100 = 0.3 m

Area of rectangle = length × breadth

★ Substituting the values in the above formula,we get:

Area of rectangle = 0.5 m × 0.3 m

= 5/10 m × 3/10 m

= 15/100 m²

= 0.15 m²

Now,

Cost of Plot = Rs 100 × 0.15

= Rs 100 × 15/100

= Rs 15

Answer 2

GIVEN:

• Length of a rectangular plot = 50 cm
• Breadth of the rectangular plot = 30 cm

TO FIND:

• What is the cost of the rectangular plot ?

SOLUTION:

We know that the formula for finding the area of rectangular plot is:-

$\large\bf{\star \: Area = Length \times Breadth \: \star}$

According to question:-

$\rm{\dashrightarrow Area = 50 \times 30 }$

$\bf{\dashrightarrow \star \: Area = 1500 \: cm^2 \: \star }$

We have given that, the cost of 1m² plot is Rs. 100

Convert cm² into m²

➝ Area = 1500 cm²

➝  Area = 1500/10000

➝ Area = 0.15 m²

❝ The area of plot is 0.15 m² ❞

➝ $\bf{ 1 \: m^2 = Rs. \: 100}$

➝ $\bf{ 0.15 = 0.15 \times 100}$

➝ $\bf{ 0.15 \: m^2 = Rs. \: 15}$

❝ Hence, the cost of 0.15 m² rectangular plot is Rs. 15 ❞

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✰ Extra Information ✰

➺ Opposite sides are equal.

➺ Opposite angles are equal.

➺ Diagonals bisect each other.

➺ Diagonals are equal.

➺ Diagonals are perpendicular.

➺ Diagonals bisect vertex angles.