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1
Determine the volume of a spherical shell which has an inner radius of 7 cm and an outer radius of 10 cm.
2573.14 cu cm
2753.14 cu cm
2735.14 cu cm
2553.14 cu cm
2
Half cubic metre of gold-sheet is extended by hammering so as to cover an area of 1 hectare. Find the thickness of the gold-sheet.
0.0005 cm
0.005 cm
0.05 cm
0.5 cm
3
A metal cube of edge 12 m is melted and formed into three smaller cubes. If the edges of the two smaller cubes are 6 cm and 8 cm, find the edge of the third smaller cube.
12 cm
14 cm
8 cm
10 cm
4
Find the volume of the hemisphere of radius 3.5 cm.
None of these
5
How many planks each of which is 2 m long, 2.5 cm broad and 4 cm thick can be cut-off from a wooden block 6 m long, 15 cm broad and 40 cm thick?
160
180
108
168
6
The dimensions of a cinema hall are 100m, 50m and 18m. How many persons can sit in the hall, if each person requires of air?
400
500
600
800
7
Find the volume of sphere of radius 2.1 cm.
8
A cone and a cylinder are having the same base. Find the ratio of their heights if their volumes are equal.
1:3
3:1
2:3
3:2
9
Find the volume of the prism if area of the base is 400 sq units and the height is 5 units.
2000 cubic units
2020 cubic units
3000 cubic units
4000 cubic units
10
How many cubes of side 2 cm can be packed in a cubical box with inner side equal to 4 cm ?
11
Find the volume of the following triangular prism:
12
Edge of a cube measures 25 m and l=20m, b=2 m, h=3 m are the measures of a cuboid. Which one of the above has larger volume?
Cuboid
Cube
Both are equal
13
A river 3m deep and 40m wide is flowing at the rate of 2 km per hour. How much water will fall into the sea in a minute?
4000
40000
none of these
14
If the volume and the radius of a cylinder are 41.58 cm cube and 2.1 cm respectively, then the height of the cylinder is :
1.5cm
3cm
9cm
1.732cm
15
A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of the four walls, the volume of the hall is:
720 cu m
900 cu m
1200 cu m
1800 cu m