For the following questions answer them individually
Read the following information and answer the following questions below.
In a class of 90 students, 80 students like burger or pizza. 62 like burger and 56 like pizza.
For the following questions answer them individually
The average age of 27 students of a class is 22. If the age of the teacher is also added to their ages, then the average increases by one. Find the age of the teacher.
