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Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

A cylindrical vessel with internal diameter 10 cm and height 10.5 cm is full of water. A solid cone of base diameter 7 cm and height 6 cm is completely immersed in water. Find the volume of water i] displaced out of the cylinder ii] left in the cylinder

This is one of the important question from the cbse board exam because this question was asked in 2009 cbse ...Read more

Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

A solid metallic sphere of diameter 28 cm is melted and recast into a number of smaller cones, each of diameter 4[2/3] cm and height 3 cm. Find the number of cones so formed.

In the given problem given shape is sphere. To find answer of this question need to use sphere volume formula. ...Read more

Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

A milk container is made of metal sheet in the shape of frustum of a cone whose volume is 1045937 cm³ . The radii of its lower and upper circular ends are 8 cm and 20 cm, respectively. Find the cost of metal sheet used in making the container at the rate of 1.40 per cm².

This question was asked in 2010 cbse board exam. Question from RS Aggarwal book chapter volume and surface area of ...Read more

Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

A bucket is in the form of a frustum of a cone with a capacity of 12308.8 cm³ of water. The radii of the top and bottom circular ends are 20 cm and 12 cm, respectively. Find the height of the bucket.

In the given problem use π = 3.14 Problem from RS Aggarwal book, problem number 37, page number 829, exercise 17D, ...Read more

Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

If the radii of the circular ends of a bucket 28 cm high, are 28 cm and 7 cm, then find its capacity and total surface area.

This is one of the important question from the cbse board exam because this question was asked in 2011 cbse ...Read more

Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

A toy is in the form of a cone of radius 3.5 cm mounted on a hemisphere of same radius. The total height of the toy is 15.5 cm. Find the total surface area of the toy.

This question was asked in 2012 cbse board exam. Question from RS Aggarwal book chapter volume and surface area of ...Read more

Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

A metallic solid right circular cone is of height 84 cm and the radius of its base is 21 cm. It is melted and recast into a solid sphere. Find the diameter of the sphere.

In the given problem shape of the object is cone to find answer of this question need to use cone ...Read more

Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

The interior of a building is in the form of a right circular cylinder of diameter 4.2 m and height 4 m surmounted by a cone of same diameter. The height of the cone is 2.8 m. Find the outer surface area of the building.

This is one of the important question from the cbse board exam because this question was asked in 2014 cbse ...Read more

Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

A bucket of height 24 cm is in the form of frustum of a cone whose circular ends are of diameter 28 cm and 42 cm. Find the cost of milk at the rate of 30 per liter, which the bucket can hold.

This is the frustum problem, Problem from RS Aggarwal book, problem number 32, page number 829, exercise 17D, chapter volume ...Read more

Deepak BoraNewbie

Asked: August 29, 2020In: CBSE

A hollow sphere of external and internal diameters 8 cm and 4 cm, respectively is melted into a solid cone of base diameter 8 cm. Find the height of the cone

This is one of the important question from the cbse board exam because this question was asked in 2013 C ...Read more

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