The average age of 19 boys in a class is 21 years If the teacher 39 s age is included the average in...........

Logical Resoning (CGL) Problems based on Ages

The average age of 19 boys in a class is 21 years. If the teacher's age is included, the average increases to 22 years. What is the teacher's age?

39 years

41 years

40 years

44 years

the total of all boys ages = 19*21= 399.
The total of all persons ages including teacher= 22*20= 440;
Hence, the age of teacher= 440-399= 41

Submit Error