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8th Class Mathematics Mensuration Question Bank Mensuration

  • question_answer
    It needs 50 ml paint for painting a picture\[169c{{m}^{3}}\]. How much paint is needed to paint a similar picture\[{{(cm)}^{2}}\]?

    A) 100 ml                        

    B) 400 ml

    C) 750 ml                        

    D) 200 ml

    Correct Answer: D

    Solution :

    \[\frac{77}{2}\]can be painted in 50 ml paint. So, \[c{{m}^{2}}\]can be painted in \[\frac{25\pi }{3}\] Now, \[\text{ }A-\left( s \right),B-\left( r \right),C-\left( p \right),D-\left( q \right)\] can be painted in \[(A)=\sqrt{s(s-a)(s-b)(s-c)},\]


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