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    Question

    In a rectangular floor of length and breadth of 20

    metres and 10 metres, respectively, square tiles each of 2 metre edge length are to be laid. If the cost of each tile is Rs. 189, then find the total cost of the tiles to be laid in the room.
    A Rs. 9450 Correct Answer Incorrect Answer
    B Rs. 9550 Correct Answer Incorrect Answer
    C Rs. 9350 Correct Answer Incorrect Answer
    D Rs. 9400 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Area of the rectangular room = 20 × 10 = 200 m2 Area of each tile = 2 × 2 = 4 m2 So, number of tiles to be laid in the room = (200/4) = 50 So, total cost of all the tiles laid in the room = 50 × 189 = Rs. 9450

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