Question

If the cost of fencing a rectangular field at rs 8 per m is rs 600 and the length of the field is 20 cm , find the breadth of the field

Answer 1

Area of fencing at the rate of Rs.8 = 1m
Area of fencing at the rate of Rs.600 = 1/8×600 = 75m

Length = 20cm = 20/100 = 0.2m
Breadth = ?
Perimeter if rectangular field = 75m
2(Length + Breadth) = 75m
2(0.2 + Breadth) = 75
0.2 + Breadth = 75/2
0.2 + Breadth = 37.5
Breadth = 37.5 - 0.2 = 37.3m