How many sphereical lead shots each 4.2cm in diameter can be obtained from a rectangular solid of lead with dimensions 66cm, 42cm, 21cm. `(U s epi=(22)/7)`

Explanation

To find out how many spherical lead shots can be obtained from a rectangular solid of lead, we need to calculate the volume of the rectangular solid and the volume of one spherical lead shot, and then divide the volume of the solid by the volume of one lead shot.

### Step-by-Step Solution:

1. **Calculate the Volume of the Rectangular Solid:**
The formula for the volume \( V \) of a rectangular solid (cuboid) is given by:
\[
V = \text{length} \times \text{width} \times \text{height}
...