A conical tent is to accommodate 11 persons. Each persons must have 4 sq. metres of the space on the ground and 20 cubic metrs of air to breath. Find the height of the cone.

Explanation

To solve the problem of finding the height of a conical tent that accommodates 11 persons, we will follow these steps:

### Step 1: Calculate the total ground area required
Each person requires 4 square meters of space on the ground. Therefore, for 11 persons, the total ground area required is:
\[ \text{Total Ground Area} = \text{Number of Persons} \times \text{Area per Person} = 11 \times 4 = 44 \text{ sq. meters} \]

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