I am unable to solve this question,

helps needed !!

I need to calculate how many balls can be put into the frustum.

Basically i m using frustum of a cone formula to calculate the whole volume.

Frustum Volume = (p * height * (Ra² + Ra * Rb + Rb²

/ 3)

= (p * 72 * (81+135+225) / 3 )

= 33250.61665

However for the oval shape item, i do not know how to calculate it. Any idea what formula i should use?

My idea is using the (total frustum volume - oval shape volume) / 1.5 to get the numbers of balls that can be place in the glass. Is my assumption right? I was told the number of balls can be place in is within the range of 3000 to 8000. Please advice.