Question

9. Find the cost of cultivating a rectangular field 35 m long and 18 m wide at ₹20 per square
metre. Also, find the cost of fencing the field at ₹15 per metre.​

Answer 1

Cost of cultivation = 2120,

cost of fencing = 1590

Step-by-step explanation:

Given, L=35m        b=18

area of rectangular field=2(l+b)

                                         $2(35+18)\\2(53)\\106m^2$

the cost  of cultivation Rs.20/$m^2$

the cost of 106 $m^2$ field =

$106\times20\\=2120$

the cost of fencing of the field Rs.15/$m^2$

$106\times15\\=1590$