Question

A milkman uses a container, in the shape of frustum of cone, to store milk. The container open from the top, is of height 40cm with radii of its lower and upper circular ends as 14cm and 35cm respectively. Find the volume of milk (in litres) which can completely fill the container. If he sell the milk at 35 per litre, for how much amount he can sell the whole milk?

Answer 1

Thank you for asking this question. Here is your answer:

We will use the following formula to solve this question:

1/3πh(r1²+r2²+r1r2)

and we will put the following values into it:

h = 40 cm

r1 = 35 cm

r2 = 14 cm

1/3π ×16(1225+196+490)

1/3 π ×16(1911)

π ×16×637

22/7 × 16×637

= 32032 cm³

So the final answer is 32032 cm³

If there is any confusion please leave a comment below.