Question

the cost of fencing a rectangular field at ruppes 30 per metre is ruppes 2,400 . if the length of the feild is 24 m find its breadth.

Answer 1

Step-by-step explanation:

cost = Rs 30/m

total cost paid = Rs 2400

perimeter = total cost / cost per unit

= 2400 / 30

= 80 m

length = 24 m

perimeter = 80 m

80 = 2(l+b)

80 = 2l + 2b

80 = 2 * 24 + 2b

2b = 80 - 48

2b = 32

b = 16 m

Answer 2

Answer:

ruppes 30 for per metre fencing

Total cost=2400

length =24 m

breadth=?

Perimeter = (2400÷30)m

= 80m

Perimeter=2(l+b)

80 =2(24+x)

80 = 48 +2x

80 - 48 =2x

32 =2x

32÷2 =x

16 =x

Ans- Breadth = 16 m