The average age of 5 boys is 13 years. One more boy joins them and the average age become 12 years. Find the age of boy who joins last

Average age of 10 students of a class is 18 years. If one more student join them now , the average becomes 19 years .What is the age of new student ?

The average age of A and B is 20 years.If A is replaced by C, the average age becomes 19 years and if B is replaced by C, the average age becomes 21 years.Find the aves of A,backslash B and C.

The average age of 25 men is 28 years. 5 new men of an average age of 25 years joined them. Find the average age of all the men together.

Average age of 17 student of a class is 16 years. If a new student join the class then average age becomes 20. Then find the age of new student.

The average age of 12 boys is 15 years and the average age of 18 girls is 12 years .What is the conbined average age of the boys and girls ,taken together ?

The average age of a class is 21 years. If a student with age 42 years joins the class, then new average age becomes 24 years. How many total students are there in the class?

The average age of 12 players is 25 years. If the age of thecaptain be included, then the average age increases by 1years. Find the age of Captain

The average age of Sachin and Ganguli is 35 years, If Kaif replaces Sachin, the average age becomes 32 years and if Kaif replaces Ganguli, then the average age becomes 38 years. If the average age of Dhoni and Irfan be half of the average age of Sachin, Ganguli, and Kaif, then the average age of all the five people is :

In a colony, the average age of the boys is 14 years and the average age of the girls is 17 years. If the average age of the children in the colony is 15 years, find the ratio of number of boys to that of girls.