exercise 17b Archives - Page 2 of 3

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Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

Water is flowing through a cylindrical pipe of internal diameter 2 cm, into a cylindrical tank of base radius 40 cm, at the rate of 0.4 m per second. Determine the rise in level of water in the tank in half an hour.

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In the given problem shape of the pipe is cylindrical and tank shape also cylindrical. This question was asked in ...Read more

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Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

A solid right circular cone of height 60 cm and radius 30 cm is dropped in a right circular cylinder full of water, of height 180 cm and radius 60 cm. Find the volume of water left in the cylinder, in cubic meters.

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This is one of the important question from the cbse board exam point of view because in 2015 cbse board ...Read more

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Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

The rain water from a 22 m × 20 m roof drains into a cylindrical vessel of diameter 2 m and height 3.5 m. If the rain water collected from the roof fills 4/5th of the cylindrical vessel, then find the rainfall in centimeter.

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Problem from RS Aggarwal book, problem number 22, page number 811, exercise 17B, chapter volume and surface area of solid.Read more

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Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

The rain water from a roof of 44 m × 20 m drains into a cylindrical tank having diameter of base 4 m and height 3.5 m. If the tank is just full, then find the rainfall in cm.

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This question was asked in 2014 cbse board exam. Question from RS Aggarwal book chapter volume and surface area of ...Read more

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Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

A hemispherical tank, full of water, is emptied by a pipe at the rate of 25/7 litres per second. How much time will it take to empty half the tank if the diameter of the base of the tank is 3 m?

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This is one of the most important question from the cbse board exam point of view because in 2012 and ...Read more

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Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

A hemispherical bowl of internal radius 9 cm is full of water. Its contents are emptied into a cylindrical vessel of internal radius 6 cm. Find the height of water in the cylindrical vessel.

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

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Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

The diameter of a copper sphere is 18 cm. It is melted and drawn into a long wire of uniform cross-section. If the length of the wire is 108 m, find its diameter

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This is the important question for cbse board exam. Given problem is the combination of two shape that is sphere ...Read more

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Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

The diameter of a sphere is 42 cm. It is melted and drawn into a cylindrical wire of diameter 2.8 cm. Find the length of the wire

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This problem is the combination of two shape that is sphere and cylinder. To find answer of this question we ...Read more

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Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

A solid sphere of radius 3 cm is melted and then cast into small spherical balls, each of diameter 0.6 cm. Find the number of balls obtained.

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In the given problem there is need to use volume formula 2 time. In the given problem shape of the ...Read more

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Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

How many lead balls, each of radius 1 cm, can be made from a sphere of radius 8 cm?

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

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