Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Progression Arithmetic Progression
If the 10th term of the sequence a, a - b, a - 2b, a - 3b,......is 20 and the 20th term is 10, then the xth term of the series is
1
10 - x
2
20 - x
3
30 - x
4
More than one of the above
5
None of the above