The cost of levelling the field at the rate of rupees 8 per square meter is 9600.
The length of the two diagonals of a rhombus shaped field are 40 m and 60 m.
The area of a rhombus :
Area =
* d1 * d2
d1 = the length of the first diagonal
d2= the length of the second diagonal
In this case, d1 = 40 m and d2 = 60 m.
Therefore, the area of the rhombus is:
Area =
* 40 m * 60 m
= 1200 square meters
Total cost = Area * Rate
Total cost = 1200 square meters * 8/square meter =9600
The total cost of leveling the field is ₹9600.