Teaching OSSSC TGT Teachers Mock Test Series 2025 Quantitative Aptitude Progression Arithmetic Progression
If the ratio of the sums of the first 9 terms to the first 15 terms of an arithmetic progression is 9 : 25, then the ratio of the 9th term to the 15th term is:
1
3 : 5
2
19 : 31
3
17 : 29
4
14 : 19