Sequence {t(n)} of positive terms is a G...

Sequence `{t_(n)}` of positive terms is a G.P. If `r _(6), 2,5 t _(14)` form another G.P. in that order, then the prodct `t _(1)t _(2) t _(3)….. T _(18)t _(19)` is equal to :

A

190

B

`10^(10)`

C

`10^((19)/(2))`

D

`10^(9)`

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The correct Answer is:

C

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