In an A. P., ten times of its tenth term is equal to thirty times of its $30^{t h}$ term. Find the $40^{t h}$ term.

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Solution

The general term of an A.P. is given by

Given,

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In an A. P., ten times of its tenth term is equal to thirty times of its 30th term. Find the 40th term.

The general term of an A.P. is given by Given,

In an A. P., ten times of its tenth term is equal to thirty times of its $30^{t h}$ term. Find the $40^{t h}$ term.

The general term of an A.P. is given by

Given,