Question

Find the cost of fencing a rectangular park of length 10m and breadth 5m at the rate of ₹10 per metre.

Answer 1

Answer:

Question :-

Find the cost of fencing a rectangular park of length 10m and breadth 5m at the rate of ₹10 per metre.

Answer :-

$\mathfrak {Given} \begin {cases} \sf \: Length \: = 10 \: m \\ \sf Breadth \: = 5 \: m \\ \sf \: Cost \: of \: 1 \: m = 10 \end{cases}$

✯ We have to find Total cost

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$\sf \: Things \: to \: know \begin{cases} \sf perimeter = 2(l + b) \\ \sf total \: cost = cost \: of \: 1 \: m \: \times perimeter \end{cases}$

⇝ Perimeter = 2(10 + 5)

⇝ Perimeter = (2 × 10) + (2 × 5)

⇝ Perimeter = 20 + 10

⇝ Perimeter = 30 m

✯ Perimeter = 30 m.

Now,

Total cost = 30 × 10

Total cost = ₹300

✯Total Cost = ₹300

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