The average age of 40 students of a class is 15 years. When 10 new students are admitted, the average is increased by 0.2 year.The average age of the new students is :

The average age of 40 students of a class is 15 years. When 10 new students are admitted, the average is increased by 0.2 year.The average age of the new students is :
1). 15.2 years
2). 16 years
3). 16.2 years
4). 16.4 years

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