Answer question of picture .

Answer:
13
Step-by-step explanation:
12+18+13+16+6=65
Then divide by how many of them there are (5).
65/5=13
The average age will be 13 years
In order to find the average of quantities we use the following formula
So putting the value
Average age = (12+18+13+16+6) / 5
Average age is 13