Subject: General Aptitude · Chapter: Average · Exam: · Marks: · Difficulty:
The average age of the boys in a class is 16 years and that of the girls is 15 years. The average age for the whole class is
(a)15 years
(b)15.5 years
(c)16 years
(d)Cannot be computed with the given information
Answer
Answer (as printed): D
Explanation
Clearly, to find the average, we ought to know the number of boys, girls or students in the class, neither of which has been given. So, the data provided is inadequate.
Explanation as extracted from the printed page; notation may be imperfect.