Question

8. A rectangular park is 50 m long and 35 m wide. A path 3 m wide is constructed outside the park. Find the area of the path and the cost of constructing it at * 200 per m2.​

Answer 1

Answer:

Area of park =l×b=45×30=1350 cm

2

Area of park with path is =45+2.5+2.5×30+2.5+2.5=1750 cm

2

Therefore,

Area of path = Area of park with path − Area of rectangular park

=1750−1350=400 cm

2

Hence, this is the answer.

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Answer 2

$Area \: of \: Park = l×b \\ = 50 \times 35 \\ = 1,750$

$Area \: of \: Park = \\ = 50 + 3 + 3 \times 35 + 3 + 3 \\ = 56 \times 35 + 6 \\ = 56 \times 41 \\ = 2,296$

$Area = 2,296 - 1,750$

$Area = 546$

$Cost \: at \: 200 \: {m}^{2}$

$= 546 - 200$

$= 346$