Correct Answer - Option 1 : 64 m
Given:
The total cost of ploughing = Rs. 65536
Per meter square cost of ploughing = Rs.16
Formula Used:
Area of square = Side × Side
Total cost = Area of field × Per meter square cost
Calculation:
The total cost of ploughing = Area of field × Per meter square cost of ploughing
⇒ 65536 = Area of field × 16
⇒ 65536/16 = Area of field
⇒ 4096 m2 = Area of field
Area of field = Area of Square
Area of square = (Side)2
⇒ 4096 = (Side)2
⇒ √4096 = side
⇒ 64 m = side
∴ The side of the square is 64m.
