Question

If the are of the rectangular plot is 255 m² . If the breadth is 15 m. Find the lenght of the plot and the cost of fencing it at the rate of ₹ 18 per metre​

Answer 1

Answer:

length = area / width

= 255 / 15 = 17 m

cost of fencing =

2 ( l + b )

= 2 ( 15 + 17 ) = 2 × 32

= 64 rupess / m

18 × 64 = 1152

Answer 2

Answer:

$area = 255 {m}^{2} \\ b = 15m \\ let \: length \: be \: l \\ area = l \times b \\ 255= l \times 15 \\ l = \frac{255}{15} \\ l = 17m \\ \\ cost \: of \: fencing = 18 \times 255 \\ = rs.4590$