8th Class Mathematics Mensuration Question Bank Mensuration

  • question_answer
    Find the number of coins 1.5 cm in diameter and 0.2 cm thick melted from a right circular cylinder whose height is 8 cm and diameter 6 cm.

    A) 620                             

    B) 640

    C) 660                             

    D) 680

    Correct Answer: B

    Solution :

    Volume of the cylinder \[\frac{100}{\pi }cm\] Volume of the coin \[50\sqrt{2}cm\] \[5\sqrt{3}\] \[c{{m}^{2}}\] \[c{{m}^{2}}\]


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