Explanation:

Here’s what’s going on:

- The average height of 48 employees is 120 feet, so total height is 48 × 120 = 5760 feet.

- Now, we add ‘n’ employees with an average height of 108 feet, so their total is 108n feet.

- The combined average for all employees becomes 116 feet.

- That means: (5760 + 108n) / (48 + n) = 116

- Solve for n:

5760 + 108n = 116(48 + n)

5760 + 108n = 5568 + 116n

5760 - 5568 = 116n - 108n

192 = 8n

n = 24

- Total number of employees now: 48 + 24 = 72

Now, about the options:

- Option 1: 70

- Option 2: 70 (repeats)

- Option 3: 62

- Option 4: 54

- Option 5: None of these

The correct answer is Option 5: None of these. The total employees is 72, which isn’t listed except as "None of these."