Question

If length. And breadth of rectangular field is 9m and 5m find the cost of fencing the field all around at the rate of rs 3 per meter

Answer 1

Perimeter of rectangle =2(l+b)
So perimeter of the field is 2×14=28m
So cost of fencing is 28×3=Rs 84

Answer 2

area of a rectangular field =2(l+b)=2×(9+5)m=2×14=24 the rate of rs3 =24×3=₹72