The dimensions of a classroom are 12 m, 6 m, and
4 m. Find the cost of decorating its walls by a wall-
paper of 50 cm wi

The dimensions of a classroom are 12 m, 6 m, and
4 m. Find the cost of decorating its walls by a wall-
paper of 50 cm width, which costs 30 per metre.​

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  1. Answer:

    Area of 4 walls of the class room =

    <br>

    <br>

    <br>

    <br>

    <br> Length of the wall paper required <br>

    <br>

    <br>

    <br>

    <br> = Rs. 8640

    Step-by-step explanation:

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