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10th Class Mathematics Mensuration Question Bank Mensuration

  • question_answer
    A wall 4 metre long, 3 metre high and 13 cm thick is made up of bricks each measuring\[\text{2}0\text{cm}\times \text{12cm}\times \text{6}.\text{5cm}\]. The number of bricks required is

    A)  500                                       

    B)  1000  

    C)  1500                     

    D)         2000

    Correct Answer: B

    Solution :

     Number of bricks \[=\frac{Volume\text{ }of\text{ }wall}{~Volume\text{ }of\text{ }one\text{ }brick}\] \[=\frac{400\times 300\times 13}{20\times 12\times 6.5}\] \[=1000\]


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