Question

a rectangular mat of 5 metre into 3.5 metre at a border of width 1.8 metre all around it if the cost of the matter is rupees 272 per metre square find the cost for bordering the mat​

Answer 1

★$\huge\bf{\blue{\underline{Question:-}}}$

a rectangular mat of 5 metre into 3.5 metre at a border of width 1.8 metre all around it if the cost of the matter is rupees 272 per metre square find the cost for bordering the mat

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★$\huge\bf{\red{\underline{Answer:-}}}$

₹52500

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★$\huge\bf{\green{\underline{Explanation:-}}}$

Given inner side of square park, s=100 cm

Area of inner square =100 2

=10000 cm 2

width of path,w=5 cm

Outer side of square =100+5+5=110 cm

Area of outer square =110 2

=12100 cm 2

Area of path =12100−10000=2100 cm 2

Cost of cementing at the rate of Rs 250 per 10 sq cm = Rs 250×210= Rs 52500

∴ Cost of cementing a 2100 cm 2

path =Rs. 52500

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Answer 2

Given inner side of square park, s=100 cm

Area of inner square =100 2

=10000 cm 2

width of path,w=5 cm

Outer side of square =100+5+5=110 cm

Area of outer square =110 2

=12100 cm 2

Area of path =12100−10000=2100 cm 2

Cost of cementing at the rate of Rs 250 per 10 sq cm = Rs 250×210= Rs 52500

∴ Cost of cementing a 2100 cm 2

path =Rs. 52500

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