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    Question

    In a rectangular floor of length and breadth of 13

    metres and 10 metres, respectively, square tiles each of 5 metre edge length are to be laid. If the cost of each tile is Rs. 150, then find the total cost of the tiles to be laid in the room.
    A Rs. 780 Correct Answer Incorrect Answer
    B Rs. 720 Correct Answer Incorrect Answer
    C Rs. 750 Correct Answer Incorrect Answer
    D Rs. 730 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Area of the rectangular room = 13 × 10 = 130 m2 Area of each tile = 5 × 5 = 25 m2 So, number of tiles to be laid in the room = (130/25) = 5.2 So, total cost of all the tiles laid in the room = 5.2 × 150 = Rs. 780

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