Question

the cost of fencing if rectangle field at rupee18 per metre is rupee 3930. if the width of the field is 23m, find its length and area

Answer 1

Answer:

length = 86.167 m

Area = 1921.83 m²

Step-by-step explanation:

Suppose length = x

Perimeter of rectangle field is 2 ( Length + Width )

= 2 ( x + 23 )

= 2x + 46

The cost of fencing a rectangle field is 3930 which is equal to its perimeter into cost per meter.

(2x + 46 ) * 18 = 3930

2x + 46 = 3930/18

2x + 46 =218.33

2x =218.33 - 46

x = 172.33/2

x = 86.167

So the length of rectangle field is 86.167m

Area of  the length of rectangle field = length * width

= 86.167 * 23

= 1921.83 m²