. A container, opened from the top and made up of a metal sheet, is in the form of afrustum of
a cone of height 16 cm with radii of its lower and upper ends as 8 cm and 20cm, respectively. Find the cost of the milk which can completely fill the container, at therate of Rs 20 per litre. Also find the cost of metal sheet used to make the container, if itcosts Rs 8 per 100 cm2 (Take π = 3.14)
Best Answer
Solution:Radius (r1) of upper end of container = 20 cm
Radius (r2) of lower end of container = 8 cm
Height (h) of container = 16 cm
Slant height (l) of frustum
Related questions
