Question

The total cost of fencing a rectangular field at 60 per metre is 4800. If the length of the field
is 30 m, find the
(a) perimeter of the field.
(b) breadth of the field.
(c) area of the field.​

Answer 1

Answer:

Solution:

(a)Given that,

Length of the field is= 30 m

And cost of fencing is= 60 m per metre

Therefore, the cost of fencing the 2 length of the garden=(2X30X60)

                                                                                           =3600

Therefore, the cost of fencing the 2 breadth is=( 4800-3600)

                                                                          = 1200

Therefore, the breadth is= (1200/60)/2

                                         = 10 m

Therefore, the perimeter is= 2(10+30)

                                             = 20+60

                                             = 80 m

(b) From (a), it was found that,

Breadth is= 10 m

(c) From (a) it was found that,

Breadth is= 10 m

And given in question, length is= 30 m

Therefore, the area of the rectangular garden is= (10X30) sq. m

                                                                                =300 sq. m

Hope my answer will help you.

Thank you.

Step-by-step explanation: