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: \(cm\)