27. Exemplar Exercise Problems XI

1. How many shots each having diameter $3 cm$ can be made from a cuboidal lead solid of dimensions $9 \cm \times 11 \cm \times 12 \cm$?

 

Ans: $cm$

 

2. A bucket is in the form of a frustum of a cone and holds $28.490$ litres of water. The radii of the top and bottom are $28$ $cm$ and $21$ $cm$, respectively. Find the height of the bucket.

 

Ans: $cm$