The diagram shows a tin of beans. 
A label is cut to the exact size of the curved surface of the tin and glued on to the tin.
Labels are cut from a rectangular piece of paper that measures $35 cm$ by $120 cm$.
What is the maximum number of labels that can be cut from one piece of paper? Show all your working.

The diameter of a cylinder is $14 cm$ and its height is $10 cm$, then find the curved surface of the cylinder.

A solid metallic sphere of radius $6 cm$ is melted and made into a solid cylinder of height $32 cm$. Find the curved surface area of the cylinder. (Take $\pi =3.1$)

 A cylindrical tank with hemisphere ends having radius $0.42 m$ and total height $3.84 m$. Find total surface area of the closed tank.