Question

Find the cost of fencing a rectangular park of length 175 m and breadth 125 m at the rate of ₹ 12 per meter ?.



₹ 6000

₹ 7000

₹ 7250

₹ 7200

​

Answer 1

Answer:

Perimeter=2(L+B)

=2(175+125)m

=2×300m

=600m

1 m cost =Rs.12

600 m cost=Rs.12×600m

=Rs.7200

Answer 2

Question:-

Find the cost of fencing a rectangular park of length 175 m and breadth 125 m at the rate of ₹ 12 per meter ?.

a) ₹ 6000

b) ₹ 7000

c) ₹ 7250

d) ₹ 7200

Answer:-

• The total cost of fencing is ₹7200

To find:-

• Total cost of fencing

Solution:-

• Length = 175 m
• Breadth = 125 m

As we know,

$\huge{ \boxed{ \boxed{ \mathfrak{perimeter = 2(l + b)}}}}$

Where,

• l = length of rectangle
• b = breadth of rectangle

According to question,

$\large{ \tt : \implies \: \: \: \: \: \: perimeter = 2(175 + 125)}$

$\large{ \tt : \implies \: \: \: \: \: \: perimeter = 2 \times 300}$

$\large{ \tt : \implies \: \: \: \: \: \: perimeter = 600 \: }$

• The perimeter of rectangle is 600 m

Now,we have to find the cost of fencing,

$\large{ \boxed{ \mathfrak{cost \: of \: fencing = cost(per \: m) \times perimeter}}}$

Here,

• Cost (per m) = ₹12
• Perimeter of rectangle = 600 m

$\large{ \tt : \implies \: \: \: \: \: \: cost \: of \: fencing= 12 \times 600}$

$\large{ \tt : \implies \: \: \: \: \: \: cost \: of \: fencing = 7200}$

Hence,

• The total cost of fencing is ₹7200

The correct option is (d).