Calculate Total Seats: 5 Halls × 30 Average Seats per Hall

To solve this problem, we'll begin by applying the steps outlined previously.

• Step 1: Identify the given information. We know that there are 5 halls in the sports center, and the average number of seats per hall is 30.
• Step 2: Use the formula for calculating the total from an average. The formula is:

$\text{Total} = \text{Average} \times \text{Number of Halls}$

• Step 3: Plug in the given values into the formula. We have:

$\text{Total} = 30 \times 5$

Calculate the result:

• Perform the multiplication: $30 \times 5 = 150$.

Therefore, the total number of seats in the sports center is $150$.