Question

A rectangular lawn 70m by 50m has two across roads each 6m wide running in the middle of it one parallel to length and other parallrl to breadth fond the cost of leveling them at 5.5.rs. per square meter

Answer 1

as both roads are parallel to the length and one to the breadth ,one of them will be 420m² and the other will be 300 m²
total area to be leveled =720m²
total cost = 720×5.5 =₹3960

Answer 2

Answer:

The cost is Rs 3762.

Step-by-step explanation:

Given : A rectangular lawn 70m by 50m has two across roads each 6m wide running in the middle of it one parallel to length and other parallel to breadth.

To find : The cost of leveling them at 5.5.rs. per square meter?

Solution :

Area of the road parallel to the length:

$\text{Area}= \text{Length}\times \text{Breadth}$

$\text{Area} = 70 \times 6$

$\text{Area} = 420m^2$

Area of the road parallel to the breadth

$\text{Area}= \text{Length}\times \text{Breadth}$

$\text{Area} = 50 \times 6$

$\text{Area} = 300m^2$

Area of the overlapping road:

$\text{Area}= \text{Length}\times \text{Breadth}$

$\text{Area} = 6 \times 6$

$\text{Area} = 36m^2$

Area of the road:

Area = 420 + 300 - 36 = 684m²

Find the cost of leveling:

1 m² = Rs 5.50

684 m² = 5.5 x 684 = Rs 3762

Therefore, The cost is Rs 3762.