Question

A rectangular garden is twice as long as its breadth and its perimeter is 90m. Find the dimensions, and its area. Also find the cost of growing grass in the garden at Rs 80 per sq. metre.

Answer 1

Answer:

Let breadth =x

Then length =2x

Perimeter of rectangle = 2(l+b)= 6x=90m

So, x=15m

Breadth = 15m

Length = 30m

Area = 450m²

cost of growing grass per m² = Rs. 80

For 450m², cost = Rs. 36000