Subject: General Aptitude · Chapter: Average · Exam: · Marks: · Difficulty:
How many children are there in the group? I. Average age of the children in this group is 15 years. The total age of all the children in this group is 240 years. II. The total age of all the children in the group and the teacher is 264 years. The age of the teacher is 9 years more than the average age of the children.
Answer
SELF-PRACTICE — the source book printed no answer.
Nothing is invented here, so this question has no answer on record.