Question

a rectangular plot of land is 50 m wide.the cost of fencing the plot at the rate of rupees 18 per metre is 4680.Find:
A. The length of the plot.
b. The cost of the plot at the rate of Rs.7.6 per sq.m​

Answer 1

A. The length of the plot is 80 meters

B. The cost of the plot at the rate of Rs.7.6 per sq.m is 30400 rupees

Step-by-step explanation:

$l = x \\ b = 50 \\ cost \: of \: fencing = 4680 \\ \\ \\ a) \: cost \: = cost \times perimeter \\ 4680 = 18 \times 2(l + b) \\ 4680 = 36 \times 2(x + 50) \\ 4680 = 36(x + 50) \\ 4680 = 36x + 1800 \\ 4680 - 1800 = 36x \\ 2880 = 36x \\ x = \frac{2880}{36} \\ x = 80m \\ \\ \\ \\ b) \: \: cost \: of \: plot \: = area \times cost \\ = l \times b \times 7.6 \\ = 80 \times 50 \times 7.6 \\ = 4000 \times 7.6 \\ = 30400$

hope you like this answer.

this is Anvaya signing out

☮️ peace

Answer 2

dsssssssssssssssssssssssssssssssssc yweeeeeeeeeeagku yadu