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Answers
Answer:
Rs 58.52
Step-by-step explanation:
the bottom of a right cylindrical shaped vessel made from metallic sheets is closed by a cone shaped vessel as shown in the figure.the radius of the circular base of cylinder and radius of the circular base of cone are equal to 7cm. if the height of cylinder is 20cm and height if cone is 3cm,calculate the cost of milk to fill completely this vessel at rate of rs 20 per litre
Volume of container = Volume of Cylinder - Volume of cone
as cone is inserted in cylinder
Volume of cylinder = π r² h
r = 7 cm h = 20 cm π = 22/7
Volume of cylinder = (22/7) (7)² (20) = 3080 cm³
Volume of cone = (1/3)π r² h
r = 7 cm h = 3 cm π = 22/7
Volume of cone = (1/3)(22/7) (7)² (3) = 154 cm³
Volume of container = 3080 - 154 = 2926 cm³
1 litre = 1000 cm³
Capacity of container = 2926/1000 = 2.926 Litr
Cost Per Litre = Rs 20
Total Cost = 20 * 2.926 = Rs 58.52
cost of milk to fill completely this vessel = Rs 58.52