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The diameter of a sphere is decreased by 25%. By what per cent does its curved surface area
|
|
1
|
1038
|
April 10, 2019
|
|
The front compound wall of a house is decorated by wooden spheres of diameter 21 cm
|
|
1
|
1310
|
April 10, 2019
|
|
A wooden bookshelf has external dimensions as follows : Height = 110cm, Depth = 25cm
|
|
1
|
567
|
April 10, 2019
|
|
A capsule of medicine is in the shape of a sphere of diameter 3.5 mm
|
|
1
|
1116
|
April 10, 2019
|
|
Twenty seven solid iron spheres, each of radius r and surface area S are melted
|
|
1
|
1995
|
April 10, 2019
|
|
A dome of a building is in the form of a hemisphere. From inside, it was white washed
|
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1
|
1926
|
April 10, 2019
|
|
Find the volume of a sphere whose surface area is 154 cm2
|
|
1
|
1434
|
April 10, 2019
|
|
A hemispherical tank is made up of an iron sheet 1 cm thick
|
|
1
|
1869
|
April 10, 2019
|
|
How many litres of milk can a hemispherical bowl of diameter 10.5 cm hold?
|
|
1
|
2340
|
April 10, 2019
|
|
The diameter of a metallic ball is 4.2 cm. What is the mass of the ball
|
|
1
|
1261
|
April 10, 2019
|
|
Find the amount of water displaced by a solid spherical ball of diameter (i) 28 cm (ii) 0.21 m
|
|
1
|
2078
|
April 10, 2019
|
|
Find the volume of a sphere whose radius is (i) 7 cm (ii) 0.63 cm
|
|
1
|
2850
|
April 10, 2019
|
|
If the triangle ABC in the Question 7 above is revolved about the side 5 cm
|
|
1
|
1195
|
April 10, 2019
|
|
A right triangle ABC with sides 5 cm, 12 cm and 13 cm is revolved about the side 12 cm
|
|
1
|
1077
|
April 10, 2019
|
|
The volume of a right circular cone is 9856 cm3. If the diameter of the base is 28 cm
|
|
1
|
1969
|
April 10, 2019
|
|
A conical pit of top diameter 3.5 m is 12 m deep. What is its capacity in kilolitres?
|
|
1
|
1764
|
April 10, 2019
|
|
If the volume of a right circular cone of height 9 cm is 48 cm3, find the diameter of its base
|
|
1
|
328
|
April 10, 2019
|
|
The height of a cone is 15 cm. If its volume is 1570 cm3, find the radius of the base
|
|
1
|
1112
|
April 10, 2019
|
|
Find the capacity in litres of a conical vessel with radius 7 cm, slant height 25 cm
|
|
1
|
1810
|
April 10, 2019
|
|
Find the volume of the right circular cone with radius 6 cm, height 7 cm
|
|
1
|
2148
|
April 10, 2019
|
|
A patient in a hospital is given soup daily in a cylindrical bowl of diameter 7 cm
|
|
1
|
1207
|
April 10, 2019
|
|
A lead pencil consists of a cylinder of wood with a solid cylinder of graphite filled in the interior
|
|
1
|
1207
|
April 10, 2019
|
|
The capacity of a closed cylindrical vessel of height 1 m is 15.4 litres
|
|
1
|
1420
|
April 10, 2019
|
|
It costs ₹2200 to paint the inner curved surface of a cylindrical vessel 10 m deep
|
|
1
|
854
|
April 10, 2019
|
|
If the lateral surface of a cylinder is 94.2 cm2 and its height is 5 cm
|
|
1
|
1147
|
April 10, 2019
|
|
A soft drink is available in two packs a tin can with a rectangular base of length 5 cm
|
|
1
|
795
|
April 10, 2019
|
|
The inner diameter of a cylindrical wooden pipe is 24 cm and its outer diameter is 28 cm
|
|
1
|
2016
|
April 10, 2019
|
|
The circumference of the base of a cylindrical vessel is 132 cm and its height is 25 cm
|
|
1
|
1738
|
April 10, 2019
|
|
A river 3 m deep and 40 m wide is flowing at the rate of 2 km per hour
|
|
1
|
1635
|
April 10, 2019
|
|
A solid cube of side 12 cm is cut into eight cubes of equal volume
|
|
1
|
1950
|
April 9, 2019
|