A milk container is made of metal sheet ...

A milk container is made of metal sheet in the shape of frustum of a cone whose volume is `10459 3/7 cm^2`. 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 Rs. 1.40 per square centimeter.

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The correct Answer is:

`₹ 4224`

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A milk container is made of metal sheet in the shape of frustum of a cone whose volume is 10459(3)/(7)cm^(2). The radii of its lower and upper circular ends are 8cm and 20cm respectively. Find the cost of metal sheet used in making the container at the rate of Rs.1.40per square centimeter.

A container made of a metal sheet open at the top is the form of frustum of the cone, whose height is 16 cm and the radii of its lower and upper circular edges are 8 cm and 20 cm respectively. Find (i) the cost of metal sheet to make the container if it costs ₹ 10 per 100 cm^(2) (ii) the cost of milk at the rate of ₹ 35 per litre which can fill it completely.

a container open at the top and made up of a metal sheet, is in the form of a frustum of a cone of height 14 cm with radii of its lower and upper circular ends as 8 cm and 20 cm, respectively. find the capacity of the container.

A milk container of height 16 cm is made of metal sheet in the form of a frustum of a cone with radii of its lower and upper ends as 8 cm and 20 cm, respectively. Find the cost of milk at the rate of ₹22 per L which the container can hold.

A container, open from the top, made up of a metal sheet is in the form of a frustum of a cone of height 16 cm with radii of its lower and upper ends as 8 cm and 20 cm respectively. Find the cost of milk which can completely fill the container at the rate of Rs 15 per litre and the cost of metal sheet used, if it costs Rs 5 per 100 cm^(2) . (take pi = 22/7)

A bucket open at the top,and made up of a metal sheet is in the form of a frustum of a cone.The depth of the bucket is 24cm and the diameters of its upper and lower circular ends are 30cm and 10 cm respectively.Find the cost of metal sheet used in it at the rate of Rs 10 per 100cm^(2) .

An open metal bucket is in the shape of a frustum of cone of height 21 cm with radii of its lower and upper ends are 10 cm and 20 cm respectively. Find the cost of milk which can completely fill the bucket at the rate of रु 40 per litre.

A container, opened from the top and made up of a metal sheet, is in the form of a frustum of a cone of height 16 cm with radii of its lower and upper ends as 8 cm and 20 cm, respectively. Find the cost of the milk which can completely fill the container, at the rate of Rs 20 per litre. Also find the cost of metal sheet used to make the container, if it costs Rs 8 per 100 cm^(2) . (take pi = 3.14)

A container opened at the top and made up of a meta! sheet, is in the form of a frustum of a cone of height 16 cm with radii of its lower and upper ends as 8 cm and 20 cm respectively. Find the cost of milk which can completely fill the container, at the rate of ? 50 per litre. Also find the cost of meta! sheet used to make the container, if it costs Rs. 10 per 100 cm^2 ? ( Take pi = 3.14).

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RS AGGARWAL-VOLUME AND SURFACE AREAS OF SOLIDS-Exercise 17D

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