A solid is in the form of a right circular cone mounted on a hemisphere. The radius of the hemisphere is 3.5cm and the height of the cone is 4cm. The solid is placed in a cylindrical tub, full of water, in such a way that the whole solid is submerged in water. If the radius of the cylinder is 5cm and its height is 10.5cm, find the volume of water left in the cylindrical tub. `(U s epi=(22)/7)`

Explanation

To solve the problem step by step, we will calculate the volume of the solid (which consists of a cone and a hemisphere) and then find the volume of water left in the cylindrical tub after the solid is submerged.

### Step 1: Identify the given values
- Radius of the hemisphere (and cone) \( r = 3.5 \, \text{cm} \)
- Height of the cone \( h = 4 \, \text{cm} \)
- Radius of the cylinder \( R = 5 \, \text{cm} \)
- Height of the cylinder \( H = 10.5 \, \text{cm} \)
- Use \( \pi = \frac{22}{7} \)
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