A lawn is 80 m long and 60 m wide. There is a swimming pool of length 20 m * 6 m in this lawn. what will be the cost of putting grass in the remaining part of field at Rs.30 per square metre?
I will assume you mean that the whole property is
80 m by 60 m, and the swimming pool lies within.
area of whole thing = 4800 m^2
area of pool = 120 m^2
area of lawn = 4800-120 = ....
multiply that by Rs 30 to get the cost.
To find out the cost of putting grass in the remaining part of the field, we need to calculate the area of the pool and subtract it from the total area of the lawn.
First, we find the area of the pool by multiplying its length and width:
Area of the pool = Length * Width = 20 m * 6 m = 120 square meters.
Next, we calculate the total area of the lawn:
Total area of the lawn = Length * Width = 80 m * 60 m = 4,800 square meters.
To find the remaining area of the field, we subtract the area of the pool from the total area of the lawn:
Remaining area of the field = Total area of the lawn - Area of the pool
Remaining area of the field = 4,800 square meters - 120 square meters
Remaining area of the field = 4,680 square meters.
Finally, we can calculate the cost of putting grass in the remaining part of the field by multiplying the remaining area by the cost per square meter:
Cost = Remaining area of the field * Cost per square meter
Cost = 4,680 square meters * Rs.30 per square meter
Cost = Rs. 140,400.
Therefore, the cost of putting grass in the remaining part of the field will be Rs. 140,400.