The sum of n terms of two A.P.’s are in the ratio 5n + 4 : 9n + 6. T – McqOptions

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1.	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
A.	$\frac{{179}}{{321}}$$
B.	$\frac{{178}}{{321}}$$
C.	$\frac{{175}}{{321}}$$
D.	$\frac{{176}}{{321}}$$
Answer» B. $\frac{{178}}{{321}}$$

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