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Room of given length, breadth, height: cost of whitewashing walls and ceiling

The same question, asked 2 times: 24 Jul 2023 S2*, 25 Jul 2023 S2. Every wording below, oldest first.

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  1. Question 1

    24 Jul 2023 S2

    74
    The length, breadth, and height of a room are 10 m, 8 m and 6 m respectively. Find the cost of white washing the walls of the room and the ceiling at the rate of ₹7.50 per m2\text{m}^2.

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  2. Question 2

    25 Jul 2023 S2

    64
    The length, breadth and height of a hall are 10 m, 20 m and 15m respectively. Find the cost of whitewashing the walls of the inside of the hall and ceiling at the rate of ₹10.20/m2\text{m}^2

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