Question

The cost of putting grass in a square lawn is ₹3888 @ ₹12 per square metre. Find the length of the side of the lawn

Answer 1

Let the length of the side of the lawn be (a)metres
Area of the square lawn=(a²) m²
Cost of putting grass=Rs.(12×a²)
3888=12a²
a²=3888/12=324
a=√324=18 m(Ans.)

Answer 2

Answer:

#18 ans.

Step-by-step explanation:

Let the length of the side of the lawn be (a)metres

Area of the square lawn=(a²) m²

Cost of putting grass=Rs.(12×a²)

3888=12a²

a²=3888/12

324

a=√324

18 m

thanks