Question

per m'. Find the
133. A right triangle we
135. A solid iron recta
018. An ice-cream cone has alan
Q19. The volume of two sphere are in the ratio 64:27. Find the dtio of their Fadii V
Find the cost of sir
be pour cubes each of side 5 cm are joined end to end. Find the surface area of the resultant
cuboid
the volume of the
Section-C (Three Marks Questions)
34. A cylindrical road
021. It costs Rs. 2200 to paint the inner curved surface of a cylindrical vessel 10 m deep. If the
thickness of their
cost of painting is at the rate of Rs. 20 per sq. m., find the radius of the base.
if 1 cm' of iron we
Q22. The diameter of a sphere is 42 cm. It is melted and drawn into a cylindrical wire of 28 cm
diameter. Find the length of the wire 2
cylinder pipe of it
The length of the cold storage is double its breadth. Its height is 3 m. The area of four wall 136. The external leng
excluding a door of dimension 4m x 2 m is 100 m². Find its volumes
10 cmn and 6 cm
Q24. Solid spheres of diameter 6 cm are dropped into a cylindrical beaker containing some
weighs 15 kg. an
water and are fully submerged. If the diameter of the beaker is 18 cm and the water rises
and sand in per
by 24 cm, find the number of solid spheres dropped in the water.
037. A lead pencil
02. Three cubes of metal whose edges are in the ratio 3:4:5 are melted soith into a single
it. The diameter
cube whose diagonal is 12. 3 cm. Find the edges of the cube
of the pencil is
Q26. There are two cones. The curved surface area of one is twice that of the other The slant
wood is 0.7 g/
height of the latter is twice that of the former. Find the ratio of their radii. U
038 A cube and a
Q27. The ratio between the curved surface area and total surface area of a right circular cylinder
1:2:4. If the di
is 1:2 Find the ratio between the height and radius.
S
Rs 5 per mis
$39. The sum of th
of the solido
Q28. Water in a canal 30 dm wide and 12 dm deep is flowing with the velocity 20 km/hr. How
much area will it irrigate in 30 minutes if 9 cm of standing water is desired?
Q29. A cylindrical pipe has inner diameter of 7 cm and water flows through it at 192.5 litres
per minute. Find the rate of flow in km/hr.
Q40. The volume
height is 4m
of the ​

Answer 1

Answer:

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