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Average age of 20 students is 21 years. 2 students leave the group and 1 new student joins the group. The average now becomes 20 years. If age ofone of the student who left the group is 26 years and the one who joined is 20 years, then what is the age (in years) of the other student who left the group?

Average age of 20 students is 21 years. 2 students leave the group and 1 new student joins the group. The average now becomes 20 years. If age ofone of the student who left the group is 26 years and the one who joined is 20 years, then what is the age (in years) of the other student who left the group? Correct Answer 14

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Quantity I: The average age of a cricket team of 11 players is x years. After three years, four players leave the team and four new players join in place of them then the current average age becomes (x + 2) years. The current average age of the players who left the team was 18 years then find the average of the current age of the 4 new joiners? Quantity II: In a group of 6 students, the average age of the 5 youngest students is 12 years and the average age of the 5 oldest students is 15 years. What is the average age of all the students? (it is given that the age of them is in arithmetic progression)?
Average age of 20 students is 21 years. Two students leave the group and one new student joins the group. The average now becomes 20 years. If age of one is 26 years and the one who joined is 20 years, then what is the age of other student who left ?
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