8th Class Mental Ability Mensuration Question Bank Mensuration

  • question_answer A flooring tile has the shape of a parallelogram whose base is 24 cm and the corresponding height is 10 cm. How many such tiles are required to cover a floor of area \[1080\,{{m}^{2}}\]? (If required you can split the tiles in whatever way you want to fill up the corners).

    A) 30,000               

    B)        40,000

    C) 45,000  

    D)       60,000

    E) None of these

    Correct Answer: C

    Solution :

    Explanation Option [c] is correct. Area of the Parallelogram \[\text{=base }\!\!\times\!\!\text{ height=24 }\!\!~\!\!\text{  }\!\!\times\!\!\text{ 10=240 sq cm}\] Required number of tiles =\[\frac{Area\,\,of\,\,Floor}{Area\,\,of\,\,Tiles}=\frac{1080\times 100\times 100}{240}=45000\]             

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