Multiple choice

Average age of 32 students in a class is 14 years. The age of their teacher is 41 years, what is the average age of the students and teacher combined?

  1. 11.3

  2. 14.81

  3. 14.36

  4. 14.17

  5. 14

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sum of students' ages = 32 * 14 = 448. Total sum with teacher = 448 + 41 = 489. Total people = 33. Average = 489 / 33 = 14.8181...

AI explanation

Using the basic average formula, the total age of the 32 students is 32 times 14, which equals 448 years. Adding the teacher's age of 41 years gives a new combined total of 489 years for 33 people. The average age of the students and the teacher combined is 489 divided by 33, which is approximately 14.81 years.