# ICSE Class 10 Maths Volume: Combination of Solids

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- please answer fast
- A lead pencil consists of a cylinder of wood with a solid cylinder of graphite filled in the interior.The diameter of the pencil is 7mm and the diameter of the graphite is 1 mm.If the length of the pencil is 14 cm ,find the volume of the good and that of the graphics.
- The length,width and height of a cuboid water tank is in a geometrical progression. Find L,W and H of the water tank if the surface area is 216 m^2 and volume is 250 m^3 resp.
- A manufacturer of foam-filled beach balls packs each one into a cubic box of side 40 cm into which it will just fit. Calculate the volume of (i) box (i) ball (iii) Å›pace wasted, which is the space inside the box, not occupied by the ball. The manufacturer later decides to use boxes of the same size to pack 8 smaller beach balls of diameter 20 cm each. Will there be more or less wasted space? Take
- Q 1
- Q 13
- Q. 6
- Q5 c part
- B part
- a solid consisting of a right circular cone, standing on a hemisphere, is placed upright in a right circular cylinder full of water and touches the bottom. find the volume of water left in the cylinder having given that the radius of the cylinder is 3cm and its height is 6cm, the radius of the hemisphere is 2cm and the height of cone is 4cm. give your answer to the nearest cubic centimetre.

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