Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Mathematics Sequences and Series Geometric Progressions
If \(\frac{a+b}{2}, b, \frac{b+c}{2}\) are in HP, then which one of the following is correct?
1
a, b, c are in AP
2
a, b, c are in GP
3
a + b, b + c, c + a are in GP
4
More than one of the above
5
None of the above