The average age of 12 children is 15 years. If another child comes the average age comes to 13. What is the age of the new child?
A
11 years
B
7 years
C
9 years
D
None
Correct Answer: None
Total age of the 12 children = 12 x 15 = 180 Total age of the children including the new child = 13 x 13 = 169 < 180 which is impossible.