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Deepak BoraNewbie

Asked: August 8, 2020In: CBSE

A cubical block of side 10 cm is surmounted by a hemisphere. What is the largest diameter that the hemisphere can have? Find the cost of painting the total surface area of the solid so formed, at the rate of 5 per 100 sq cm.

In this problem use π = 3.14. Last time this problem was asked in cbse 2015 board exam. Question number ...Read more

Deepak BoraNewbie

Asked: August 8, 2020In: CBSE

From a cubical piece of wood of side 21 cm, a hemisphere is carved out in such a way that the diameter of the hemisphere is equal to the side of the cubical piece. Find the surface area and volume of the remaining piece.

This is important problem from the cbse board exam point of view because this problem was last asked in 2014 ...Read more

Deepak BoraNewbie

Asked: August 5, 2020In: CBSE

A vessel is in the form of a hemispherical bowl surmounted by a hollow cylinder. The diameter of the hemisphere is 21 cm and the total height of the vessel is 14.5 cm. Find its capacity

This question from= RS Aggarwal Chapter Mensuration Volume and surface Volume and Surface Area of Solid Exercise 17A Page number ...Read more

Deepak BoraNewbie

Asked: August 5, 2020In: CBSE

A cylindrical container of radius 6 cm and height 15 cm is filled with ice-cream. The whole ice-cream has to be distributed to 10 children in equal cones with hemispherical tops. If the height of the conical portion is 4 times the radius of its base, then find the radius of the ice-cream cone.

This question is the combination of cylindrical structure and cone structure by using given parameters we will find the final ...Read more

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Deepak BoraNewbie

Asked: August 5, 2020In: CBSE

A toy is in the shape of a cone mounted on a hemisphere of same base radius. If the volume of the toy is 231 cm³ and its diameter is 7 cm, then find the height of the toy

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This is the important question that question was asked in 2012 cbse board exam. In this question a toy is ...Read more

Deepak BoraNewbie

Asked: August 3, 2020In: CBSE

The surface area of a sphere is 2464 cm² . If its radius be doubled, then what will be the surface area of the new sphere?

This question based on Surface area of sphere. In this question surface area of sphere is given; by using Surface ...Read more

Deepak BoraNewbie

Asked: August 3, 2020In: CBSE

The sum of the radius of the base and the height of a solid cylinder is 37 meters. If the total surface area of the cylinder be 1628 sq. meters, then find its volume.

This question sum of the radius of the base and the height of a solid cylinder is given by using ...Read more

Deepak BoraNewbie

Asked: August 3, 2020In: CBSE

If the volumes of two cones are in the ratio of 1:4 and their diameters are in the ratio of 4:5, then find the ratio of their heights.

find height of the cone by using volume of cone formula and this question from RS Aggarwal, Volume and Surface ...Read more

Deepak BoraNewbie

Asked: August 3, 2020In: CBSE

Two cubes each of volume 27 cm³ are joined end to end to form a solid. Find the surface area of the resulting cuboid.

This an important question for the cbse and ncert exam. question from RS Aggarwal book, Mensuration chapter, Volume and Surface ...Read more

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