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1. |
The average age of 40 students of a class is 18 years. When 20 new students are admitted to the same class, the average age of the students of the class is increased by 6 months. The average age of newly admitted student is |
A. | 19 years |
B. | 19 years 6 months |
C. | 20 years |
D. | 20 years 6 months |
Answer» C. 20 years | |