1.

If the first term of a G.P. \[{{a}_{1}},\ {{a}_{2}},\ {{a}_{3}},..........\]is unity such that \[4{{a}_{2}}+5{{a}_{3}}\] is least, then the common ratio of G.P. is

A. \[-\frac{2}{5}\]
B. \[-\frac{3}{5}\]
C. \[\frac{2}{5}\]
D. None of these
Answer» B. \[-\frac{3}{5}\]


Discussion

No Comment Found