Question

The sequence $\frac{5}{\sqrt{7}},\frac{6}{\sqrt{7}},\sqrt{7},$ ....... is

• A.
  H.P.
• B. G.P.
• C. A.P.
• D. None of these

Answer 1

The correct option is C A.P.

Common difference is $d=\frac{6}{\sqrt{7}}-\frac{5}{\sqrt{7}}=\frac{1}{\sqrt{7}}=\sqrt{7}-\frac{6}{\sqrt{7}}$
Hence given sequence is A.P.