Question

6. A square shaped lawn of side 100 metres has two roads, each 5 metres wide running in the middle of it. One is
parallel to the length, and the other parallel to the breadth. Find the cost of gravelling the roads at 5 per
square metre.
[04 Marks]​

Answer 1

Answer:

mark as brainlist

Step-by-step explanation:

The cost of gravelling them at Rs. 1.20 per square meter = Rs . 1560

To find the area of roads :

It is given that

a rectangular lawn 80 m × 60 m has two roads each 10 m wide running in the middle of it.

Dimension of two roads are 80×10 and 60×10

Area of two roads = 80×10+60×10−10×10

=800+600−100

= 1300 sq. meter

To find the cost for gravelling

It is given that

The cost of gravelling the at Rs. 1.20 per sq. meter.

Therefore total cost = total area × cost per sq. meter

=1300×1.20

=Rs.1560

∴ The cost of gravelling them at Rs. 1.20 per sq. meter = Rs. 1560