Question

5. The cost of levelling a rectangular field at
50 per square metre is 30,000. If its length
and breadth are in the ratio of 3: 2, then find
its perimeter.​

Answer 1

Answer:

Let the sides are 3x and 2x

levelling will be done on the area

so area= 3x*2x=6x^2

ATQ

6x^2*50=30000

x^2=100

x=100

So sides are 300 and 200 m

perimeter= 2(300+200)=1000 m