Question

A field is in the form of a rectangle whose length is 65m and breadth is
40m. Find the area of the field. Also find the cost of fencing the field at the rate
of Rs 20 per metre.​

Answer 1

$\: \: \: \: \: length \: of \: field \: = 65m$

$\: \: \: \: breadth \: of \: field = 40m$

${area \: of \: field = length \times breadth}$

$\: \: \: \: \: \: \: \: \: \: = > \: \: \: 65 \times 40$

$\: \: \: \: \: \: = > \: \: \: \: \: \: \: \: \: 2600 \: {m}^{2}$

$\: \: {rate \: of \: fencing\: 1m \: = 20 \: rs}$

$rate \: of \: fencing \: 2600m \\ = > \: \: \: 2600 \times 20$

$\: \: \: \: \: \: = > \: \: \: \: \: \: \: \: \: 52000 \: rs$