Question

a bottle of a right cylindrical shaped vessels made from metallic sheet is closed by a cone shaped vessel as shown in figure the radius of the circular base of the cylinder and radius of the circular base of the cone are equal is equal to 7 cm if the height of the cylinder is 20 cm and height of cone is 3 cm calculate the cost of milk to fill completely the special @ rupees 20 per litre​

Answer 1

Answer:

Step-by-step explanation:

Volume of cylinder = π R²h

R = 7cm

h = 20 cm

= (22/7)(7²)(20)

= 154 * 20

= 3080 cm³

Bottom is closed by cone so cone would be inside

Volume of cone = (1/3)π R²h

R = 7 cm

h = 3 cm

=(1/3)(22/7)(7²)(3)

= 154 cm³

Volume of vessel = Volume  of cylinder - volume of cone

= 3080 - 154 = 2926 cm³

1 litre = 1000 cm³

2926 cm³ = 2.926 Litr

Cost of Milk = Rs 20 per litre

Cost of milk = 20 * 2.926 =  Rs  58.52