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CBSE Class 10 Answered

14. From a solid cylinder of height 12 cm and base diameter 10 cm, a conical cavity with the same height and diameter is carved out. Find the volume of the remaining solid. 15. A building is in the form of a cylinder surmounted by a hemispherical dome as shown in the figure. The base diameter of the dome is equal to 2 3 of the total height of the building. Find the height of the building, if it contains 67 1 27 m3 of air. [2011 (T-II)] 16. A heap of rice is in the form of a cone of diameter 9 mand height 3.5 m. Find the volume of the rice. Howmuch canvas cloth is required to just cover the heap? 17. 500 persons are taking a dip into a cuboidal pond which is 80 m long and 50 m broad.What is the rise of water level in the pond, if the average displacement of the water by a person is 0.04 m3. 18. A rocket is in the form of a right circular cylinder closed at the lower end and surmounted by a cone with the same radius as that of the cylinder. The diameter and height of the cylinder are 6 cmand 12 cmrespectively. If the slant height of the conical portion is 5 cm, find the total surface area and volume of the rocket. (Take ? = 3.14)
Asked by swetha | 01 Jan, 2014, 08:34: PM
Expert Answer
Please ask one question at a time. The answer to your first question is as follows:
 
Answered by | 01 Jan, 2014, 09:50: PM
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CBSE 10 - Maths
3. A glass cylinder with radius 10 cm has water to a height of 9 cm. A metal cube of 8 cm edge is immersed in it completely. Calculate the height by which water will rise in the cylinder. Use =22/7
Asked by rajsingh94116633 | 04 May, 2022, 10:06: AM
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CBSE 10 - Maths
A conical tank with base radius 20 cm and height 40 cm is initially filled with water. Water drains through a small round hole at the bottom with a diameter of 1cm. Find an expression for the height of water in the tank at time t  
Asked by anitajoshi0912 | 22 Dec, 2021, 09:12: AM
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CBSE 10 - Maths
what is the formula of cone
Asked by kavya123 | 01 Jun, 2021, 09:38: PM
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CBSE 10 - Maths
if d is the diameter of the sphere then its volume is dash cu units
Asked by gnarasimha626 | 24 May, 2021, 09:40: AM
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CBSE 10 - Maths
A man donates 10 aluminium buckets to an orphanage . A bucket made of aluminium is of h=20cm and has its upper and lower end of r=36cm and 21 cm . Find the cost of preparing 10 buckets if the cost of aluminium is rs 42 per 100 cm sq
Asked by thunderboyshubharth2005 | 13 Mar, 2021, 01:54: PM
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CBSE 10 - Maths
A hemispherical  depression  is  cut  out  from  one  face  of  cubical  block  of  side  7cm,  such  that                   the  diameter  of  the  hemisphere  is  equal  to  the  edge  of  the  cube.  Find  the  surface  area  of  the remaining  of  solid. .
Asked by meet46159 | 04 Jan, 2021, 10:43: AM
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CBSE 10 - Maths
The amount of air present in a cylinder when a vaccum pump removes 1/4 of the air remaining in the cylinder at a time 
Asked by bhumichoudhary9091 | 18 Nov, 2020, 09:29: AM
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CBSE 10 - Maths
How to find out slant height if h is 24 and r is 36
Asked by bhumichoudhary9091 | 15 Nov, 2020, 02:56: AM
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CBSE 10 - Maths
The number of planes of dimensions 4m×5m×20m that can be stored in a pit of dimensions 60m×40m×12m is 
Asked by nsiddu2007 | 30 Sep, 2020, 11:04: AM
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CBSE 10 - Maths
In cuboid the length of its diagonal is 5√5 and sum of its length breadth and depth is 19 than find it's TSA
Asked by manishbennalli | 01 Apr, 2020, 07:25: PM
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