Civil Services TNPSC Group 1 (New Syllabus) Mock Test 2025 Quantitative Aptitude Average

Average age of a group of 10 students is 12 years. If 5 new students join them, then the average age of the group increases by 1 years. The average age of the new students is

1
13 years
2
15 years
3
16 years
4
18 years
5
Answer not known
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