Question

The cost of ploughing in a square field is Rs 2450 at the rate of rs.2 per 100 sq.mtrs .find the length of the side of the square.

Answer 1

Total cost = area×rate

2450 = area×100/2

2450/50 = (side) 2

49 = (side) 2

7 m= side

The length of side of square is 7m.

Answer 2

Answer:

Length of the side of the square = 350 meter

Step-by-step explanation:

Cost of ploughing in a square field = Rs. 2450

Rate at which the field is ploughed = Rs. 2 per 100 square meters

We need to find the side length of the square.

Now, Cost of ploughing = Area × Rate per 1 square meter

⇒ 2450 = Area × 2/100

⇒ Area = 2450 × 50

⇒ Area = 122500 square meters

Now, Area = Side²

⇒ side = √122500

⇒ Length of the side of the square = 350 meter