Subject: General Aptitude · Chapter: Average · Exam: · Marks: · Difficulty:
What is the average age of 45 students studying in a class? (Bank P.O., 2008) I. The average age of boys is 15.4 years while the average age of girls is 14.6 years. II. Boys and girls are respectively in the ratio 4 : 5. III. The number of boys is less than that of girls by 5.