Math, asked by Priyam9885, 1 year ago

A carpet is 30m 75cm long and 80cm wide ,find its cost at rs 150 per square metres

Answers

Answered by BrainlyNews
2
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\large\mathsf\red{Carpet \ is \ a \ Cuboid.}

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\large\mathsf{Given \ dimensions \ -}

\mathsf{Length \ = \ 30 \ m}

\mathsf{Breadth \ = \ 75 \ cm}

\mathsf{Height \ = \ 80 \ cm}

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\large\mathsf{Using \ Formula \ -}

\mathsf\blue{T.S.A. \ of \ Cuboid \ = \ 2(lb + bh + hl)}

\mathsf{Here,}

\mathsf{l \ = \ Length}

\mathsf{b \ = \ Breadth}

\mathsf{h \ = \ Height}

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\large\mathsf{Conversation \ of \ units}

\mathsf{As \ we \ know,}

\mathsf\pink{1 \ m \ = \ 100 \ cm}

•°•

\mathsf\pink{1 \ cm \ = \ 1/100 \ m}

\mathsf{Now,}

\mathsf{Breadth \ = \ 75 \ cm}

\mathsf{75 \ cm \ = \ 75/100 \ m}

\mathsf\blue{Breadth \ = \ 0.75 \ m}

\mathsf{Height \ = \ 80 \ cm}

\mathsf{80 \ cm \ = \ 80/100 \ m}

\mathsf\blue{Height \ = \ 0.80 \ or \ 0.8 \ m}

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\large\mathsf{Putting \ values \ in \ formula}

\mathsf{We \ get,}

\mathsf{= \ 2[(30)(0.75) + (0.75)(0.8) + (0.8)(30)]}

\mathsf{On \ solving \ further,}

\mathsf{= \ 2(22.5 + 0.6 + 24)}

\mathsf{= \ 2 × 47.1}

\large\mathsf{= \ 94.2}

\mathsf{Hence,}

\mathsf\red{T.S.A. \ of \ cuboid \ = \ 94.2 \ m^2}

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\mathsf{Given \ -}

\mathsf{Cost \ of \ 1 \ m^2 \ = \ Rs. \ 150}

\mathsf{Cost \ of \ 94.2 \ m^2 \ -}

\mathsf{= \ Rs. \ (150 × 94.2)}

\mathsf{= \ Rs. \ 14130}

\mathsf\red{Total \ Cost \ = \ Rs. \ 14130}

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Answered by tapanalpana0100
1

Answer:

I have solved it

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