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Question 1
If (L × b × h) = 10 × 8 × 6 m3 than find the area of required sheet to build this rectangular tank. The tank also has a circular opening with radius 1 m in one of its sides to fill the tank.
Question 2
If the height of a cone is increased by 50% and the radius is decreased by 15%, what is the change in volume?
Question 3
A spherical lead ball of radius 10 cm is melted and small lead balls of radius 5 mm are made. The total number of possible small lead balls is (Take π= ).
Question 4
The radius of the base and curved surface area of a right circular cylinder are ‘r’ units and '4Πrh' square units respectively. The height of the cylinder is ____.
Question 5
A cylindrical pipe of radius 1.4m has water flowing out a speed of 2.5m/sec into a cuboidal tank of dimensions 28m×11m×25m. The flow of water completely occupies the cross-sectional area of the pipe. What percentage of the tank is filled up in 8min and 20sec?
Question 6
The volume of a cuboid is twice the volume of a cube. If the dimensions of the cuboid are 9 cm, 8 cm and 6 cm, the total surface area of the cube is
Question 7
A cone, a hemisphere and a cylinder stand on same base of radius R and have equal height H.Also their height and radius are the same. Their whole surfaces are in the ratio of:
Question 8
The area of three consecutive faces of a cuboid is 12 cm2 each. The volume of the cuboid is how much?
Question 9
The base of a right pyramid is a square of side 43 cm long. If the volume of the pyramid is 7396, then its height is:
Question 10
A cone of height 25 cm and diameter 21 cm is mounted on a hemisphere of the same diameter. Find the volume of the solid thus formed? (Take n = 22/7)
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Aug 2SSC & Railway