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Q. Find the cost of building a boundary wall around a rectangular plot 100 metre long and 40 m and 75 cm wide at the rate of ₹ 23 per meter. A 2.5 long stretch is left on one of the longer sides for entrance.
Answers
Answer:
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Answer:
6417 Rs
Step-by-step explanation:
It is given that,
- Length of wall = 100m
- Width of wall = 40.75 m
- Cost per metre = 23 Rs
- 2.5 m are left for entrance
Perimeter of rectangle = 2( length + breadth )
= 2( 100 + 40.75)
= 281.5 m
Therefore , Cost = 23 × 281.5 = 6474.5 Rs
However, 2.5m are left for entrance.
Therefore, the cost of the 2.5m = 23 × 2.5
= 57.5 Rs
Therefore, final cost = 6474.5 - 57.5
= 6417 Rs
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