If x₁, x₂, . . ., x_n and …, …, . . . , … are two A.P..s such that x₃ = h₂ = 8 and x₈ = h₇ = 20, then x₅.h₁₀ equals :

Option A. Assume d₁ is the common difference of A.P x₁,x₂ ..... x_n

Sequences and Series

JEE Main 2018 · 15 Apr, Morning shift · Q5197

MathematicsMedium178×since 2002Q5197

If x₁, x₂, . . ., x_n and

{1 \over {{h_1}}}

{1 \over {{h_2}}}

, . . . ,

{1 \over {{h_n}}}

are two A.P..s such that x₃ = h₂ = 8 and x₈ = h₇ = 20, then x₅.h₁₀ equals :

JEE Main 2018 · 15 Apr, Morning shift · Q5197

MathematicsMedium178×since 2002Q5197

If x₁, x₂, . . ., x_n and

{1 \over {{h_1}}}

{1 \over {{h_2}}}

, . . . ,

{1 \over {{h_n}}}

are two A.P..s such that x₃ = h₂ = 8 and x₈ = h₇ = 20, then x₅.h₁₀ equals :