The sum of n terms of two A.P.’s are in the ratio 5n + 4 : 9n + 6. Then, the ratio of their 18th term is Options: A . &nbsp$$\frac{{179}}{{321}}$$ B . &nbsp$$\frac{{178}}{{321}}$$ C . &nbsp$$\frac{{175}}{{321}}$$ D . &nbsp$$\frac{{176}}{{321}}$$

The sum of n terms of two A.P.’s are in the ratio 5n + 4 : 9n + 6. Then, the r

Question

The sum of n terms of two A.P.’s are in the ratio 5n + 4 : 9n + 6. Then, the ratio of their 18th term is

Options:

A . $$\frac{{179}}{{321}}$$

B . $$\frac{{178}}{{321}}$$

C . $$\frac{{175}}{{321}}$$

D . $$\frac{{176}}{{321}}$$

Answer: Option A

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