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A container opened from top and made up of metal sheet is in the form of a frustrum of cone of height 16 cm with radii of its lower and upper ends 8 cm and 20 cm respectively .find the cost of milk which can completely fill the container,at the rate of Rs.20 per litre . also find the cost of metal sheet used to make the container, if it is cost Rs.8 per 100 cm sq.

    • Posted by Santosh Patil 6 years, 9 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    #Miss_Raagini ???? 6 years, 9 months ago

    Here, = 20 cm, = 8 cm and = 16 cm Volume of container = = = = = = 10.44992 liters Cost of the milk = = Rs. 208.8894 = Rs. 209 Now, surface area = + = + = + = = 1158.4 + 200.96 = Area of the metal sheet used = Cost of metal sheet = = 156.7488 = Rs. 156.75

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