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The diameter of a sphere is decreased by 25%. By what per cent does its curved surface area
|
|
1
|
563
|
April 10, 2019
|
|
The front compound wall of a house is decorated by wooden spheres of diameter 21 cm
|
|
1
|
939
|
April 10, 2019
|
|
A wooden bookshelf has external dimensions as follows : Height = 110cm, Depth = 25cm
|
|
1
|
379
|
April 10, 2019
|
|
A capsule of medicine is in the shape of a sphere of diameter 3.5 mm
|
|
1
|
625
|
April 10, 2019
|
|
Twenty seven solid iron spheres, each of radius r and surface area S are melted
|
|
1
|
1109
|
April 10, 2019
|
|
A dome of a building is in the form of a hemisphere. From inside, it was white washed
|
|
1
|
1118
|
April 10, 2019
|
|
Find the volume of a sphere whose surface area is 154 cm2
|
|
1
|
805
|
April 10, 2019
|
|
A hemispherical tank is made up of an iron sheet 1 cm thick
|
|
1
|
1037
|
April 10, 2019
|
|
How many litres of milk can a hemispherical bowl of diameter 10.5 cm hold?
|
|
1
|
1391
|
April 10, 2019
|
|
The diameter of a metallic ball is 4.2 cm. What is the mass of the ball
|
|
1
|
730
|
April 10, 2019
|
|
Find the amount of water displaced by a solid spherical ball of diameter (i) 28 cm (ii) 0.21 m
|
|
1
|
1220
|
April 10, 2019
|
|
Find the volume of a sphere whose radius is (i) 7 cm (ii) 0.63 cm
|
|
1
|
2000
|
April 10, 2019
|
|
If the triangle ABC in the Question 7 above is revolved about the side 5 cm
|
|
1
|
758
|
April 10, 2019
|
|
A right triangle ABC with sides 5 cm, 12 cm and 13 cm is revolved about the side 12 cm
|
|
1
|
597
|
April 10, 2019
|
|
The volume of a right circular cone is 9856 cm3. If the diameter of the base is 28 cm
|
|
1
|
1102
|
April 10, 2019
|
|
A conical pit of top diameter 3.5 m is 12 m deep. What is its capacity in kilolitres?
|
|
1
|
938
|
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
|
210
|
April 10, 2019
|
|
The height of a cone is 15 cm. If its volume is 1570 cm3, find the radius of the base
|
|
1
|
655
|
April 10, 2019
|
|
Find the capacity in litres of a conical vessel with radius 7 cm, slant height 25 cm
|
|
1
|
1030
|
April 10, 2019
|
|
Find the volume of the right circular cone with radius 6 cm, height 7 cm
|
|
1
|
1421
|
April 10, 2019
|
|
A patient in a hospital is given soup daily in a cylindrical bowl of diameter 7 cm
|
|
1
|
770
|
April 10, 2019
|
|
A lead pencil consists of a cylinder of wood with a solid cylinder of graphite filled in the interior
|
|
1
|
806
|
April 10, 2019
|
|
The capacity of a closed cylindrical vessel of height 1 m is 15.4 litres
|
|
1
|
989
|
April 10, 2019
|
|
It costs ₹2200 to paint the inner curved surface of a cylindrical vessel 10 m deep
|
|
1
|
552
|
April 10, 2019
|
|
If the lateral surface of a cylinder is 94.2 cm2 and its height is 5 cm
|
|
1
|
817
|
April 10, 2019
|
|
A soft drink is available in two packs a tin can with a rectangular base of length 5 cm
|
|
1
|
460
|
April 10, 2019
|
|
The inner diameter of a cylindrical wooden pipe is 24 cm and its outer diameter is 28 cm
|
|
1
|
1408
|
April 10, 2019
|
|
The circumference of the base of a cylindrical vessel is 132 cm and its height is 25 cm
|
|
1
|
1116
|
April 10, 2019
|
|
A river 3 m deep and 40 m wide is flowing at the rate of 2 km per hour
|
|
1
|
1181
|
April 10, 2019
|
|
A solid cube of side 12 cm is cut into eight cubes of equal volume
|
|
1
|
1453
|
April 9, 2019
|