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    Question

    The total cost of painting a wall at Rs 8 per sq.cm is

    Rs 2560. If the height of the wall is 32 cm, find the length of the wall.
    A 10 cm Correct Answer Incorrect Answer
    B 18 cm Correct Answer Incorrect Answer
    C 25 cm Correct Answer Incorrect Answer
    D 20 cm Correct Answer Incorrect Answer

    Solution

    ATQ, Area of the wall = 2560 / 8 = 320 cm² 32 × length = 320 length = 10 cm

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