JEE Main & Advanced
Mathematics
Sequence & Series
Question Bank
Numerical Value Type Questions - Sequences and Series
question_answer
Let \[{{a}_{1}},{{a}_{2}},{{a}_{3}}.......\] be terms on A.P. If \[\frac{{{a}_{1}}+{{a}_{2}}+.........{{a}_{p}}}{{{a}_{1}}+{{a}_{2}}+.........+{{a}_{q}}}=\frac{{{p}^{2}}}{{{q}^{2}}},\] \[p\ne q,\] if \[\frac{{{a}_{6}}}{{{a}_{21}}}\] equals \[\frac{11}{k}\] then k is