The average age of 15 students of a class is 15 years. Out of these, the average age of 5 students is 14 years and that of the other 9 students is 16 years. Tee age of the 15th student is:
1.11years
2.14 years
3.15 years
4.15 2/7 yeras
Posted Date:-2022-02-22 11:10:18