railway RRB JE (CBT I + CBT II) Mock Test 2024 Quantitative Aptitude Problem on Age

The average age of 30 students in a class is 15 years. If the age of two teachers of the same age is included, then the new average age becomes 17 years. What is the age of either of the teacher?

1
44 years
2
47 years
3
94 years
4
54 years
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