A piece of ductile metal is in the form of a cylinder of radius 0.5 cm and length 6 cm. It is drawn out into a wire of diameter 1 mm. What will be the length of the wire?
How many cubic metres of earth must be dug out to sink a well of 22.5 m deep and diam 7m ?
The circumference of the base of a cylinder is 198 cm and its height is 30 cm. What is the curved surface area of the cylinder?
The volume of a metallic pipe is 1408 cm^{3}. Its length is 14 cm and its internal radius is 7 cm. What is the thickness of the pipe?
What is the total surface area of a cylinder having base radius 10.5 cm and length 18 cm?
A cylindrical tank has capacity of 5632 m^{3}. Its diameter is 16 m. What is its depth?
The volume of a cylinder of height 8 cm is 1232 cm^{3}. What is the difference between curved surface area and the total surface area?
What is the volume of a cube whose total surface area is 486 cm^{2 }?
A beam of wood is 5 m long and 36 cm. It is made of 1.35 m^{3} of wood. What is the width of the beam?
How many planks of size 2m × 25 cm × 8 cm. can be prepared from a wooden block 5 m long 70 cm broad and 32 cm thick ?
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