Civil Services TNPSC Group 1 (New Syllabus) Mock Test 2025 Quantitative Aptitude Ratio and Proportion Age
The average age of three girls is 15 years and the ratio of their ages is 3 : 5 : 7. Find the age of the eldest girl in years.
1
24 years
2
16 years
3
18 years
4
21 years