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The sum of some terms of G. P. is 315 w...

The sum of some terms of G. P. is 315 whose first term and the common ratio are 5 and 2, respectively. Find the last term and the number of terms.

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Let's solve the problem step by step. ### Given: - First term (a) = 5 - Common ratio (r) = 2 - Sum of n terms (S_n) = 315 ### Step 1: Write the formula for the sum of the first n terms of a geometric progression (G.P.) ...
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