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9th Class Mathematics Surface Areas and Volumes Question Bank Surface Area and Volume

  • question_answer
                   A conical flask has height 25 cm. and base diameter 12 cm. Water is poured into the flask in a depth of 15 cm. The diameter of the surface of the water is

    A)  6 cm               

    B)  7.2 cm         

    C)  8 cm                           

    D)  9 cm

    Correct Answer: A

    Solution :

    (b): \[\frac{25}{15}=\frac{12}{?}\] \[?=\frac{36}{5}=7.2\] cm        


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