A bucket made of a aluminium sheet is of height 20 cm and its upper and lower ends are of radius 25 cm and 10 cm respectively. Find the cost of making the bucket if the aluminium sheet costs Rs 70 per 100 cm² . (Use π = 3.14).

Open in App

Solution

The height of the bucket is 20cm. The radii of the upper and lower circles of the bucket are r₁ =25cm and r₂ =10cm respectively.

The slant height of the bucket is

The surface area of the used aluminium sheet to make the bucket is

Therefore, the total cost of making the bucket is

Hence the total cost is

Suggest Corrections

Similar questions

A bucket 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 bucket if the cost of metal sheet used is Rs 15 per 100 $c m^{2}$ . $[U s e π = 3.14.]$

Q. 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 24 cm and the diameters of its upper and lower circular ends are 30 cm and 10 cm respectively. Find the cost of metal sheet used in it at the rate of Rs. 10 per 100 cm² .
(Use π = 3.14).

Join BYJU'S Learning Program

A bucket made of a aluminium sheet is of height 20 cm and its upper and lower ends are of radius 25 cm and 10 cm respectively. Find the cost of making the bucket if the aluminium sheet costs Rs 70 per 100 cm2 . (Use π = 3.14).

A bucket made of a aluminium sheet is of height 20 cm and its upper and lower ends are of radius 25 cm and 10 cm respectively. Find the cost of making the bucket if the aluminium sheet costs Rs 70 per 100 cm² . (Use π = 3.14).