Let a_1, a_2, a_3, . . . be a G.P. of increasing positive terms such that a_2 \cdot a_3 \cdot a_4=64 and a_1+a_3+a_5=\frac{813}{7}. Then a_3+a_5+a_7 is equal to: [21 Jan 2026 Shift 1]

Sequences and Series Part 3

Section: Mathematics

Question : 16 of 93

Marks: +1, -0

Let a1,a2,a3,... be a G.P. of increasing positive terms such that a2⋅a3⋅a4=64 and a1+a3+a5=‌

813

. Then a3+a5+a7 is equal to:

[21 Jan 2026 Shift 1]

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