Question

a rectangular garden 200m long and 120 metre broad and has 4 square flower beds each flower that has a 40 m long side calculate the cost of laying the grass in the garden at rupees 20 per square metre

Answer 1

total area of garden= l*b= 200*120=24000m^2
total area of 4 square beds= 4(s*s)= 4(40*40)= 4(1600)=6400m^2
grass area=24000-6400=17600m^2
cost=17600*20= Rs 352000

Answer 2

Length of garden=200m
Breadth of garden=120m
Area of garden=l×b
=24000m2
Area of one square flower bed=40×40
=1600.
Area of 4 flower beds=4×1600
=6400m2
Subtracting the area of flower beds from area of field,we get area of the field excluding the flowerbeds=24000-6400m2
=7600m2
Cost of laying grass=7600×20
=Rs.152000