Question

Find the cost of fencing a rectangular field measuring 60m by 40m at a rate of rupee's 18 per metre

Answer 1

GIVEN:

• Length of the rectangular field = 60 m
• Breadth of the rectangular field = 40 m

TO FIND:

• What is the cost of fencing the rectangular field at a rate of rupees 18 per metre ?

SOLUTION:

We have given the values of length and breadth are 60 m and 40 m respectively.

To find the perimeter of the rectangular field, we use the formula:-

❰ PERIMETER = 2(L + B) ❱

According to question:-

➸ P = 2(60 + 40)

➸ P = 2 $\times$ 100

❮ PERIMETER = 200 m❯

Cost of fencing the rectangular field at the rate of rupees 18 per metre is:-

◉ 1 m = Rs. 18

◉ 200 m = 18 $\times$ 200

◉ 200 m = Rs. 3600

❝ Hence, the cost of fencing the rectangular field at the rate of rupees 18 per metre is Rs. 3600 ❞

______________________

Answer 2

Given :-

• Length of the rectangular field = 60 m
• Breadth of the rectangular field = 40 m

To Find :-

• Cost of fencing

Formula :-

We know that,

• PERIMETER (P) = 2(L + B)

Solution :-

Put the values,

$\implies \sf P = 2(60 + 40) </p><p>$

$\implies \sf P = 2 \times100$

$\implies \sf P = 200$

Cost of fencing the rectangular field at the rate of rupees 18/m is :-

$\implies \sf 1 m = Rs. 18$

$\implies \sf 200 m = 18 \times 200$

$\implies \sf 200 m = Rs. 3600$

Answer :-

The cost of fencing the rectangular field at the rate of rupees 18/m is Rs. 3600.