HARD
10th West Bengal Board
IMPORTANT
Earn 100

The internal and external diameter of a hollow long right circular iron cylindrical pipe of height 4 metre are 3.5 cm and 4.2 cm. If the weight of one cubic decimetre of iron is 5 kg, find the weight of the pipe.

Important Questions on Right Circular Cylinder

HARD
10th West Bengal Board
IMPORTANT
By melting a solid cylindrical copper rod 6.4 decimetre long and 3.5 cm radius a copper shut 2.8 decimetre long and 2.2 decimetre breadth is formed. Find the thickness of the shut?
HARD
10th West Bengal Board
IMPORTANT
The length, breadth, and height of a copper rectangular parallelepiped are 11 cm, 9 cm and 6 cm. By melting it how many number of coins of Thick and 3 cm Diameter can be formed.
MEDIUM
10th West Bengal Board
IMPORTANT
If the height of a solid cylinder is 7 cm and volume is 28π cc, then the curved surface of the cylinder is
MEDIUM
10th West Bengal Board
IMPORTANT
The diameter of solid circular cylinder is14 cm and its volume is 1155 cc. Then the height of the cylinder is 
MEDIUM
10th West Bengal Board
IMPORTANT
If the ratio of the radius of two solid cylinders is 3:4 and the ratio of their heights is 2:3 then the ratio of the curved surface area is
MEDIUM
10th West Bengal Board
IMPORTANT
The diameter of two solid cylinders are 8 units and 12 units and heights are 3(h+1) units, (h+3) units. If the volume of the cylinder are equal, then the value of h is
MEDIUM
10th West Bengal Board
IMPORTANT
The height of a solid cylinder is twice its diameter. If the volume of the cylinder is 539 cc, then its height is
MEDIUM
10th West Bengal Board
IMPORTANT
If the ratio of the radius of two solid circular cylinders is 4:3 and the ratio of their heights is 3:5 then the ratio of their curved surface area is